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Why Do Spiders Curl Up When They Die?

Video vocabulary

leave

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US / li:v /

UK / liv /

A1
  • noun
  • Permission to do something
  • Vacation time; time off work
  • verb
  • To go away from; depart
  • To gift property to someone after you die
  • To allow something to continue happening
  • To let something remain unused or available
  • To let something or someone remain somewhere

tube

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US / tju:b /

UK / tub,tjub /

B1
  • noun
  • Plastic or metal container for soft substances
  • Long hollow pipe used to hold or liquids or gases

tight

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US / taɪt /

UK / taɪt /

A2
  • adjecitve
  • Showing anxiety or anger; tense
  • Positioned physically close together
  • Managed or controlled in a strict and careful way
  • (Of road, bend) curving sharply
  • Drunk
  • Being equally matched in ability or score
  • Lacking extra space
  • Having limited time available
  • Being very limited in supply
  • Not generous; mean with money; stingy
  • (Rope or tie) pulled strongly
  • Being in a good solid relationship
  • adverb
  • Firmly; so it can't move

where

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US / hwɛə /

UK / hwɛr, wɛr /

A1
  • conjunction
  • At or in the place which
  • In whatever place
  • pronoun
  • Word you use to ask the location of something

another

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US / əˈnʌðə(r) /

UK / əˈnʌðɚ /

A1
  • adjecitve
  • One more, but not this
  • determiner
  • One more added
  • pronoun
  • One more (thing)

bunny

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US / ˈbʌni /

UK / ˈbʌni /

B2
  • noun
  • Rabbits

corpse

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US / kɔ:ps /

UK / kɔrps /

B2
  • noun
  • A dead body

join

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US / dʒɔɪn /

UK / dʒɔɪn /

A1
  • verb
  • To bring something close to another, to become one
  • To become a member of
  • To participate in an activity with others

only

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US / ˈəunli /

UK / ˈonli /

A1
  • adverb
  • Just one; just that amount or thing; not more than
  • Not very important or serious
  • Just that type of thing, person
  • Short time ago; not before a certain time
  • conjunction
  • Except; but

release

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US / rɪ'li:s /

UK / rɪ'li:s /

A2
  • noun
  • Act of freeing someone from a duty or burden
  • Introduction of a new product, film, book, etc.
  • Relief from sadness, suffering or trouble
  • Act of freeing from a jail, cage, prison, etc.
  • verb
  • To free someone from a responsibility or burden
  • To allow a film, music etc. to be sold/distributed
  • To allow to leave a jail, cage, etc.; let out
  • To let go of something you are holding

from

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US / frəm /

UK / frʌm, frɑm,frəm /

A1
  • preposition
  • Starting at a particular place, time or level

grip

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US / ɡrɪp /

UK / ɡrɪp /

A2
  • noun
  • Strong understanding of an idea
  • Control over something or someone
  • Part of an object to help you hold onto it
  • Act of holding something firmly
  • other
  • Control over something or someone
  • verb
  • To hold someone's interest
  • To hold something in your hand very firmly

out

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US / aʊt /

UK / aʊt /

A1
  • adverb
  • No longer stylish (e.g. fashion)
  • Away from home, business, or the usual place
  • In a direction/movement away from inside or center
  • noun
  • Act when a batter cannot continue playing
  • verb
  • To tell people a secret

permanently

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US / 'pɜ:mənəntlɪ /

UK / ˈpəmənəntlɪ /

B1
  • adverb
  • For a long time; always

robot

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US / ˈrəʊbɒt /

UK / ˈroʊbɑ:t /

B1
  • noun
  • Machine able perform more tasks that people can

floor

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US / flɔ:(r) /

UK / flɔr, flor /

A1
  • noun
  • Large area used for a particular purpose
  • Part of a room on which you stand
  • Particular level in a building; storey
  • verb
  • To hit or push someone to the ground
  • To surprise or confuse someone who can't respond

pose

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US / pəʊz /

UK / poʊz /

B1
  • noun
  • False behavior to gain respect or liking
  • verb
  • To be or exist as (a problem, threat etc.)
  • To suggest an idea, question or solution
  • To sit or stand while being painted or drawn
  • To put someone in a position to be photographed

think

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US / θɪŋk /

UK / θɪŋk /

A1
  • verb
  • To have an idea about something without certainty
  • To have an idea, opinion or belief about something

and

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US / ənd /

UK / ənd, ən,ænd /

A1
  • conjunction
  • Used to refer to two or more things
  • Plus; in addition; on top of that
  • Used to introduce an action that follows another

hip

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US / hɪp /

UK / hɪp /

B1
  • adjecitve
  • Being stylish and popular
  • noun
  • The upper part of Leg

inspiration

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US / ˌɪnspə'reɪʃn /

UK / ˌɪnspəˈreʃən /

B1
  • noun
  • Force making you feel you can do things, succeed

lot

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US / lɒt /

UK / lɑt /

A1
  • noun
  • What happens to a person in life from chance; fate
  • A group of people seen together
  • Item for sale at an auction
  • Small area of land used for a purpose e.g. parking

until

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US / ənˈtɪl /

UK / ʌnˈtɪl /

A1
  • conjunction
  • Up to; to a time when something happens
  • preposition
  • Before (a specific time)

leap

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US / li:p /

UK / lip /

B1
  • noun
  • (Of prices) a quick large increase
  • A large forward step or jump
  • verb
  • To enter or start something eagerly
  • (Of prices) to increase quickly by a large amount
  • To jump over something

slash

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US / slæʃ /

UK / slæʃ /

B2
  • noun
  • Line ( / ) used in writing
  • Long, deep cut, caused by a sharp object
  • verb
  • To cut violently with a sharp object
  • To decrease something by a large amount

include

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US / ɪnˈklu:d /

UK / ɪnˈklud /

A1
  • verb
  • To make someone, something part of a group

then

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US / ðen /

UK / ðɛn /

A1
  • adverb
  • A time that is not now
  • Following another thing in time or arrangement
  • Following on reasonably from what was just stated
  • At that time, not now

nothing

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US / 'nʌθɪŋ /

UK / ˈnʌθɪŋ /

A1
  • noun
  • Item of little or no value, importance, interest
  • Number or value of zero
  • pronoun
  • Not anything, not a single thing

flexible

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US / ˈfleksəbl /

UK / ˈflɛksəbəl /

B1
  • adjecitve
  • Bending easily
  • Able to adjust to new events, requirements easily

happen

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US / 'hæpən /

UK / ˈhæpən /

A1
  • verb
  • To take place or occur

about

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US / ə'baʊt /

UK / əˈbaʊt /

A1
  • adverb
  • To be ready to; going to
  • Nearly; approximately; roughly
  • Near; next to; close to
  • In every direction; in the area of
  • preposition
  • Concerning or of (a topic)

even

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US / 'i:vn /

UK / ˈivən /

A1
  • adjecitve
  • Being equal in influence, power, possibility etc.
  • Being divided equally or fairly
  • (Of teams/contest) with similar chances of success
  • Smooth, level, or regular
  • Can be divided by 2; ending in 2, 4, 6, 8, or 0
  • At a regular, equally steady manner
  • Remaining steady and unchanging
  • adverb
  • (When this is surprising) as well; too
  • (Used to compare two things/stress the difference)
  • verb
  • To make something level; to flatten
  • To make something equal

like

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US / laɪk /

UK / laɪk /

A1
  • adjecitve
  • Being equal in status or kind to something else
  • Similar; the same
  • adverb
  • For example
  • preposition
  • Used as a filler; used to ad emphasis
  • In a way similar to the way something is done
  • Such as; for example
  • verb
  • To want to
  • To find something pleasing; to prefer something

that

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US / ðæt /

UK / ðæt, ðət /

A1
  • adjecitve
  • The person or thing being talked about
  • Used to identify something both the speakers know
  • adverb
  • Used to reinforce adjectives and adverbs
  • To such a degree
  • conjunction
  • Used to connect a noun clause
  • Used to introduce an adverbial clause
  • Used to introduce a noun clause
  • determiner
  • Used as a noun to refer to something
  • pronoun
  • Referring an object far away
  • Used to refer to the relative pronoun ‘which’

what

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US / wɒt /

UK / hwɑt, hwʌt, wɔt, wʌt,hwət, wət /

A1
  • pronoun
  • Thing or things that; the same kind as
  • Used to emphasize something you are about to say
  • adjecitve
  • Used to refer to a particular amount, or number
  • Used to place emphasis on a particular quality
  • adverb
  • To a certain degree
  • determiner
  • Question words used for asking for information
  • exclamation
  • Used to express excitement, shock, or surprise
  • Used to ask people to repeat something they said

curl

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US / kɜ:l /

UK / kɚrl /

B2
  • noun
  • Something that has the shape of a curve or ring
  • verb
  • To form something into a round or curved shape
  • To become curved around the edges

action

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US / 'ækʃn /

UK / ˈækʃən /

A2
  • noun
  • Something that a person or thing does
  • verb
  • To act to do something

bother

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US / 'bɒðə(r) /

UK / ˈbɑðɚ /

A2
  • noun
  • Problems, concern or worry for someone
  • A disturbance; trouble
  • verb
  • To cause problems, concerns or worry for someone
  • To take the trouble to do something

dead

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US / ded /

UK / dɛd /

A1
  • adjecitve
  • Not alive
  • Being bored or not interested
  • Unable to operate because electricity etc. ran out
  • Being unable to feel, physically or emotionally
  • adverb
  • Completely; absolutely

get

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US / ɡet /

UK / ɡɛt /

A1
  • verb
  • To become affected by illness or disease
  • To begin to feel or understand an emotion or idea
  • To send or bring someone or something home, etc.
  • To go somewhere to obtain something
  • To (cause to) do a particular thing
  • To obtain, receive or be given something
  • To currently have
  • To prepare for use
  • To understand something being said or read

first

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US / fɜ:st /

UK / fɚst /

A1
  • adjecitve
  • 1st; Coming before all others in time or place
  • noun
  • Something that has not happened before
  • Position of the winner of a competition

cheer

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US / tʃiə /

UK / tʃɪr /

A2
  • noun
  • Feeling of happiness or optimism
  • A loud shout of encouragement or approval
  • A toast used when raising your glass to drink
  • verb
  • To give a loud shout of encouragement to someone
  • To make someone feel happier or less worried

tricep

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US / /

UK / /

A1
  • noun
  • A triceps muscle, esp. the one at the back of the upper arm

bicep

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US / baɪ'sep /

UK / baɪ'sep /

C2
  • noun
  • Muscle of the front upper arm

decompose

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US / ˌdi:kəmˈpəʊz /

UK / ˌdi:kəmˈpoʊz /

B2
  • verb
  • To cause (chemical) to separate into smaller parts
  • To gradually be destroyed by natural processes

energy

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US / 'enədʒɪ /

UK / ˈɛnədʒi /

A2
  • noun
  • Physical or mental strength

enough

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US / ɪˈnʌf /

UK / ɪˈnʌf /

A1
  • adjecitve
  • Sufficient to answer the need
  • adverb
  • To a satisfactory degree
  • pronoun
  • Equal to what is needed; as much as required
  • Adequate number or amount

mean

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US / mi:n /

UK / min /

A1
  • adjecitve
  • Being good at
  • Nasty; unkind
  • Not liking to spend money; cheap; stingy
  • noun
  • Average of a set of numbers
  • verb
  • To express a particular idea or thought
  • To intend to do something in particular
  • To have a particular meaning or value

mighty

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US / 'maɪtɪ /

UK / ˈmaɪti /

B2
  • adjecitve
  • Having great strength or great size
  • adverb
  • Very, extremely

suddenly

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US / ˈsʌdənli /

UK / ˈsʌdn:lɪ /

A1
  • adverb
  • In an unexpected or very quick manner

watch

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US / wɒtʃ /

UK / wɑtʃ /

A1
  • noun
  • Period of time someone is responsible for guarding
  • Device you wear on your wrist that shows the time
  • Official warning statement, e.g. of bad weather
  • verb
  • To keep in check, manage, or control something
  • To look at something for entertainment, e.g. TV
  • To guard a place or people; protect child, etc.
  • To look at carefully to work out what is happening
  • To protect and care for someone or something

expect

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US / ɪk'spekt /

UK / ɪkˈspɛkt /

A1
  • verb
  • To believe something is probably going to happen

sweep

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US / swi:p /

UK / swip /

A2
  • noun
  • Man who cleans chimneys
  • Act of cleaning a surface with a brush
  • Long, smooth movement made with your arm or a tool
  • Movement or search that covers a large area
  • verb
  • To clean something from a surface with a brush
  • To move or pass quickly and steadily
  • To search a very wide area for something

not

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US / nɒt /

UK / nɑt /

A1
  • adverb
  • Word indicating the negative
  • (Used to form the negative of verbs)

maybe

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US / ˈmeɪbi /

UK / ˈmebi /

A1
  • adverb
  • Possibly but not certainly; perhaps

our

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US / 'aʊə(r) /

UK / aʊr /

A1
  • determiner
  • Belonging to us

powerful

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US / ˈpauəful /

UK / ˈpaʊəfəl /

A2
  • adjecitve
  • Having control or influence over
  • Having a lot of physical force, energy, strength

ability

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US / ə'bɪlətɪ /

UK / əˈbɪlɪti /

A2
  • noun
  • The power, resources or skill to do something

but

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US / bət /

UK / bʌt,bət /

A1
  • conjunction
  • Used before you say something different, opposite

patron

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US / 'peɪtrən /

UK / ˈpetrən /

B2
  • noun
  • Person buying products or services of a business
  • Someone who donates to an organization or activity

become

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US / bɪ'kʌm /

UK / bɪˈkʌm /

A1
  • verb
  • To begin to be; grow to be; develop into
  • To be suitable for a particular job or role

tiny

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US / 'taɪnɪ /

UK / ˈtaɪni /

A2
  • adjecitve
  • Very, very small

can

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US / kæn /

UK / kən,kæn /

A1
  • noun
  • A metal container for storing food
  • other
  • Able to; have the skill to; have the time to
  • verb
  • To have permission to
  • To be possible to do
  • To preserve food by sealing it in a metal container

forearm

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US / 'fɔ:rɑ:m /

UK / fɔrˈɑrm, for- /

C1
  • noun
  • Lower part of your arm attached to your hand

spidery

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US / ˈspaɪdəri /

UK / ˈspaɪdəri /

B2
  • adjecitve
  • Light and thin, like a spider's legs

straighten

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US / 'streɪtn /

UK / ˈstretn /

A2
  • verb
  • To make or become straight

effect

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US / ɪ'fekt /

UK / ɪˈfɛkt /

A1
  • noun
  • An advantage, benefit
  • Change brought about by a cause; result

harness

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US / 'hɑ:nɪs /

UK / ˈhɑrnɪs /

B1
  • noun
  • Equipment used by horses to pull things
  • verb
  • To capture the power of something

support

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US / səˈpɔ:t /

UK / səˈpɔrt, -ˈport /

A1
  • noun
  • Assistance or advice given to someone
  • Evidence that helps prove something is true
  • A thing to hold up or prevent from falling down
  • verb
  • To give assistance or advice to someone
  • To help prove or show that something is true
  • To hold up or prevent from falling down

against

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US / əˈgenst /

UK / əˈɡenst /

A1
  • preposition
  • In physical contact with, as for support; next to
  • In opposition to; disagreeing with

experience

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US / ɪk'spɪərɪəns /

UK / ɪkˈspɪriəns /

A1
  • noun
  • Thing a person has done or that happened to them
  • An event at which you learned something
  • Knowledge gained by living life, doing new things
  • verb
  • To gain knowledge by doing things

legacy

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US / 'leɡəsɪ /

UK / ˈlɛɡəsi /

B2
  • noun
  • Literature, arts etc. from previous generations
  • Something left or given by a person who has died

now

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US / naʊ /

UK / naʊ /

A1
  • adverb
  • At the present time or moment
  • Right away or in the next possible moment
  • Used to refer to something that just happened
  • Time between the present and a moment in the past
  • conjunction
  • Resulting from or because of something

ion

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US / 'aɪən /

UK / ˈaɪən /

B2
  • noun
  • Atoms with either a positive or negative charge

protein

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US / ˈprəʊti:n /

UK / ˈprəʊˌtiːn /

B1
  • noun
  • Group of molecules made from amino acids

really

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US / ˈri:əli /

UK / ˈriəˌli, ˈrili /

A1
  • adverb
  • Used to stress something that is said; definitely
  • In a true or accurate manner
  • Very

would

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US / wʊd /

UK / wʊd /

A1
  • other
  • Used to indicate something imagined
  • Used to ask or request something politely
  • Verb used to indicate possibility, request etc.
  • Used to indicate a preference
  • Used to indicate a reaction
  • Indicates something that occurred repeatedly
  • Used to indicate willingness or ability to do

triphosphate

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US / traɪ'fɒsfeɪt /

UK / traɪ'fɒsˌfeɪt /

A1
  • noun
  • A salt or ester containing three phosphate groups

anatomy

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US / əˈnætəmi /

UK / əˈnætəmi /

B2
  • noun
  • Scientific study of the structure of (human) body

die

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US / daɪ /

UK / daɪ /

A1
  • noun
  • Cube with dots numbering 1-6 on it used in games
  • verb
  • To cease to function or work
  • (Of a thing) to stop being used or done
  • (Of a person) to stop living

extend

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US / ɪkˈstend /

UK / ɪkˈstɛnd /

A2
  • verb
  • To offer something (help, friendship) to someone
  • To reach from one point to another
  • To straighten or stretch something out, e.g. leg
  • To make something last longer

launch

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US / lɔ:ntʃ /

UK / lɔntʃ, lɑntʃ /

A2
  • noun
  • Starting a new project; introducing new product
  • Act of firing rockets into the air
  • verb
  • To start a new project; start selling a product
  • To put a rocket into the air
  • To put a ship into the water for the first time

pause

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US / pɔ:z /

UK / pɔz /

A2
  • noun
  • A temporary break before continuing
  • Function on a device to stop and restart it
  • Sign to hold a musical note a bit longer
  • verb
  • To stop doing for a while before continuing

source

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US / sɔ:s /

UK / sɔrs, sors /

A2
  • adjecitve
  • Produces or provides what is wanted or needed
  • noun
  • Piece of information; a person giving information
  • Place from which something necessary comes
  • verb
  • To get, e.g. a raw material, from somewhere

rigour

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US / ˈrɪgə(r) /

UK / ˈrɪɡɚ /

B1
  • noun
  • Precision or thoroughness in carrying out a task

since

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US / sɪns /

UK / sɪns /

A1
  • adverb
  • At a point before the present time
  • conjunction
  • For this reason; because
  • preposition
  • From the time in the past that

specifically

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US / spəˈsɪfɪkli /

UK / spəˈsɪfɪkli /

A2
  • adverb
  • As regards a particular thing; closely related to
  • In particular

unique

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US / jʊ'ni:k /

UK / juˈnik /

A2
  • adjecitve
  • Unlike other things; being the only one like it

news

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US / nju:z /

UK / nu:z /

A1
  • noun
  • Broadcast on radio or TV about recent events
  • Information about recent events

question

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US / 'kwestʃən /

UK / ˈkwɛstʃən /

A1
  • noun
  • Issue or problems you are dealing with
  • What you ask about; issue
  • verb
  • To ask for or try to get information
  • To have or express concerns or uncertainty

control

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US / kən'trəʊl /

UK / kənˈtrol /

A1
  • noun
  • A device designed to operate a machine
  • Participant in experiment that is left untouched
  • Act to dominate or command; make manageable
  • A law limiting the growth or spread of something
  • A place which overseas or manages e.g. a factory
  • verb
  • To direct or influence the behavior of something

those

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US / ðəʊz /

UK / ðoz /

A1
  • determiner
  • The people or things we are talking about
  • pronoun
  • The objects far from the speaker

stuff

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US / stʌf /

UK / stʌf /

A1
  • noun
  • Generic description for things, materials, objects
  • verb
  • To push material inside something, with force

for

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US / fə(r) /

UK / fɔr,fə /

A1
  • preposition
  • Used to show the purpose, or need of something

time

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US / taɪm /

UK / taɪm /

A1
  • noun
  • Speed at which music is played; tempo
  • Point as shown on a clock, e.g. 3 p.m
  • Number of hours, minutes needed to do something
  • Occasion when something happens
  • Period or occasion that something occurred
  • Period in history or the past
  • Something measured in minutes, hours, days, etc.
  • How long an event takes; duration
  • verb
  • To check speed at which music is performed
  • To choose a specific moment to do something
  • To measure how long an event takes, e.g. a race
  • To schedule something to occur at a specific moment

why

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US / waɪ /

UK / hwaɪ, waɪ /

A1
  • adverb
  • Question word to ask for a reason
  • exclamation
  • (Used to express surprise or approval)

just

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US / dʒʌst /

UK / dʒʌst /

A1
  • adjecitve
  • Proper or appropriate; as is deserved
  • Doing or being what is right or fair
  • Legally correct; having enough evidence
  • adverb
  • Almost; nearly
  • Exactly at the time of
  • Exactly (the same as, like)

climb

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US / klaɪm /

UK / klaɪm /

A1
  • noun
  • A trip up something, e.g. a mountain
  • Increase or a rise toward a higher price or point
  • verb
  • To rise gradually and steadily to a higher point
  • To increase or rise toward a higher price or point

cool

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US / ku:l /

UK / kul /

A1
  • adjecitve
  • Steady and calm when facing difficulties
  • Almost cold; not warm or hot
  • Smart or stylish in a way (young) people admire
  • Unfriendly in an indirect way; distant
  • verb
  • To make something decrease in temperature
  • (Of an emotion, etc.) to become less strongly felt

soon

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US / su:n /

UK / sun /

A1
  • adverb
  • At a time not long from now

relax

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US / rɪˈlæks /

UK / rɪˈlæks /

A1
  • verb
  • To calm or quiet yourself, or stop worrying
  • To release the tightness in muscles
  • To make a rule or law less strict

pair

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US / peə(r) /

UK / per /

A2
  • noun
  • Two of the same thing, e.g. socks
  • Two people viewed together for some reason; couple
  • verb
  • To put two things or people together

awesome

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US / 'ɔ:səm /

UK / ˈɔsəm /

B2
  • adjecitve
  • Great; wonderful; stupendous

hemolymph

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US / /

UK / /

A1
  • noun
  • A fluid equivalent to blood in most invertebrates, occupying the hemocoel.

much

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US / mʌtʃ /

UK / mʌtʃ /

A1
  • adjecitve
  • Very; to a high level or degree
  • adverb
  • A lot; large amount; a high degree of
  • Nearly; basically
  • On many occasions; often
  • noun
  • A large amount; a great quantity

extension

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US / ɪkˈstenʃn /

UK / ɪkˈstɛnʃən /

B1
  • adjecitve
  • Adding extra length
  • noun
  • Addition to something, e.g. a house
  • Suffix code of a computer file, e.g. .pdf, .jpg
  • Telephone for individual person, e.g. In an office
  • Something added to the end of something
  • Extra time allowed to complete something

joint

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US / dʒɔɪnt /

UK / dʒɔɪnt /

A2
  • adjecitve
  • Shared; involving working together; in common
  • noun
  • Body parts where bones meet and can move together
  • Point at which two things meet (e.g. a road)
  • A club or restaurant; place where you are

head

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US / hed /

UK / hɛd /

A1
  • noun
  • Counter for the number of cattle
  • Natural mental ability or intelligence
  • Leader or person with the greatest authority
  • Mind; mental ability; mental state
  • Side of a coin with a head on it
  • Top part of your body with eyes and a mouth
  • Starting point of something, e.g. a river
  • verb
  • To hit a ball with your head in a game
  • To be first or at the front or top (e.g. a list)
  • To travel or move toward a particular place; To go in a particular direction
  • To become the leader of something
  • To lead or be responsible for something

leg

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US / leɡ /

UK / lɛɡ /

A1
  • noun
  • Part of the body from the hips down
  • The piece of furniture that touches the ground

level

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US / 'levl /

UK / ˈlɛvəl /

A2
  • adjecitve
  • (Sports) equal to another
  • Being steady and determined (e.g. a voice)
  • noun
  • Specific height of something
  • Amount of ability you have compared to others
  • Floor or deck within a building
  • Tool used to determine if something is lying flat
  • verb
  • To aim a gun at someone
  • To destroy a building; flatten an area completely
  • To make things flat or even
  • To make a score equal to another, in sports

pressurize

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US / 'preʃəraɪz /

UK / ˈprɛʃəˌraɪz /

A2
  • verb
  • To add pressure to something (e.g. a diving suit)

adenosine

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US / ə'denəsi:n /

UK / ə'denəsɪn /

A1
  • other
  • (biochemistry) a nucleoside that is a structural component of nucleic acids; it is present in all li

mortis

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US / ˈmɔːtɪs /

UK / ˈmɔːrtɪs /

A1
  • noun

this

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US / ðɪs /

UK / ðɪs /

A1
  • adjecitve
  • Used to indicate something already been discussed
  • Used to indicate something happening around now
  • adverb
  • An indication by a physical motion or gesture
  • A specific amount of
  • determiner
  • Person, thing, or idea near you
  • pronoun
  • Person, thing that has already been discussed

body

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US / ˈbɒd.i /

UK / ˈbɑdi /

A1
  • noun
  • An object distinct from other objects
  • A group of people involved in an activity together
  • Main part of something
  • A person's physical self

make

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US / meɪk /

UK / mek /

A1
  • noun
  • Product made by a particular company; brand
  • verb
  • To arrange or prepare something e.g. dinner
  • To get to (a place) on time
  • To gain the status of (teacher, lawyer, etc.)
  • To create something by putting things together
  • To earn a certain amount of money at a job
  • To cause or force a person to do something
  • To cause something to happen or be formed

pump

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US / pʌmp /

UK / pʌmp /

B1
  • noun
  • A device more moving liquids
  • Light woman's shoe
  • verb
  • To make liquid or gas flow in a particular direction
  • To make water/other liquid move using a machine
  • To move in or out, or up and down quickly
  • asking for information in an indirect way

run

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US / rʌn /

UK / rʌn /

A1
  • noun
  • Journey between two places made by ship or car
  • Series of similar things or successes and failures
  • Act of running; exercise of running
  • verb
  • To depart or travel according to a schedule
  • To cause an animal to move in a certain direction
  • (Of an engine) to be operating
  • To start or use a computer program
  • To flow in a certain direction, like a liquid
  • To manage or operate a business
  • To operate or drive something
  • (Of a road) to go from one place to another
  • To move your legs faster than walking

answer

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US / 'ɑ:nsə(r) /

UK / ˈænsɚ /

A1
  • noun
  • Reply to a question someone asks
  • Solution to a problem or test question
  • verb
  • To reply to a question someone asks
  • To solve a test question or a problem

giant

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US / 'dʒaɪənt /

UK / ˈdʒaɪənt /

A2
  • adjecitve
  • Very large, or much bigger than other things
  • noun
  • Tall, large, and powerful human-like creatures
  • Very successful, powerful person or organization

specific

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US / spəˈsɪfɪk /

UK / spɪˈsɪfɪk /

A2
  • adjecitve
  • Precise; particular; just about that thing
  • Concerning one particular thing or kind of thing

clench

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US / klentʃ /

UK / klɛntʃ /

B2
  • verb
  • To hold something tightly; to make a fist

into

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US / 'ɪntə /

UK / ˈɪntu /

A1
  • preposition
  • Moving or going inside something
  • In the same direction as; in the direction of
  • So as to become; taking the state of

patreon

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US / 'peɪʃənts /

UK / 'peɪʃənts /

A1

one

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US / wʌn /

UK / wʌn /

A1
  • pronoun
  • You; we; people in general; someone
  • The thing or person previously referred to
  • adjecitve
  • Used to refer to people generally
  • Being a strong example of (something mentioned)
  • number
  • Number 1

other

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US / 'ʌðə(r) /

UK / ˈʌðər /

A1
  • adjecitve
  • A thing different from that mentioned
  • determiner
  • (Something) else; not the first (one)
  • pronoun
  • Being the one and only thing of that category

maximize

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US / ˈmæksɪmaɪz /

UK / ˈmæksəˌmaɪz /

B1
  • verb
  • To make as large or great as possible

power

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US / 'paʊə(r) /

UK / ˈpaʊɚ /

A1
  • noun
  • Legal or official right to perform certain actions
  • Ability to move forcefully and quickly
  • Energy of something (e.g. electricity or fuel)
  • Mathematical way to multiply a number
  • Condition of being in political control
  • Physical force, energy, and strength
  • verb
  • To give energy to something, e.g. by electricity
  • To move something forcefully and quickly

big

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US / bɪɡ /

UK / bɪɡ /

A1
  • adjecitve
  • Popular
  • Serious
  • Large

little

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US / 'lɪtl /

UK / ˈlɪtl /

A1
  • adjecitve
  • Being short in length of time
  • Not great in size, amount, or degree; small
  • Being very young or younger than others
  • adverb
  • By an amount or degree that is not very much
  • Not often; rarely
  • noun
  • A person's name

let

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US / let /

UK / lɛt /

A1
  • verb
  • To allow someone to do something
  • Introducing a suggestion to do something together
  • To rent a house, etc. to others

molecular

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US / mə'lekjələ(r) /

UK / məˈlɛkjəlɚ /

B2
  • adjecitve
  • About or caused by molecules

the

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US / ðə /

UK / ðə /

A1
  • article
  • Used to refer to something already mentioned
  • Used to show there is only one of something
  • determiner
  • Used to describe all of a family

wall

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US / wɔ:l /

UK / wɔl /

A1
  • noun
  • High, flat side of a room or building

also

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US / 'ɔ:lsəʊ /

UK / ˈɔlso /

A1
  • adverb
  • In addition; too; in a similar way

how

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US / haʊ /

UK / haʊ /

A1
  • adjecitve
  • To what degree? in what amount?
  • adverb
  • (Used to explain the way to do something)
  • exclamation
  • For what purpose or reason?
  • (Used to ask someone or something's condition)

lover

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US / 'lʌvə(r) /

UK / ˈlʌvɚ /

A1
  • noun
  • Someone's romantic and often sexual partner
  • Someone having a great interest in something
  • Person who loves someone or is loved by someone

you

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US / jʊ /

UK / ju /

A1
  • pronoun
  • Person someone is speaking or writing to
  • Person or people in general

able

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US / 'eɪbl /

UK / ˈebəl /

A2
  • adjecitve
  • Skilled; good at something
  • Having the ability to do something

combat

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US / 'kɒmbæt /

UK / kəmˈbæt, ˈkɑmˌbæt /

B1
  • verb
  • To fight someone or something physically

work

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US / wɜ:k /

UK / wɚk /

A1
  • adjecitve
  • Activity completed in order to make money
  • noun
  • The product of some artistic or literary endeavor
  • Everything created by an author, artist, musician
  • Activity you do in order to make money
  • Place of employment
  • Final product or result of a some labor or effort
  • verb
  • To bring into a specific state of success
  • To be functioning properly, e.g. a car
  • To do your job in your company or workplace
  • To make an effort to do something
  • To operate a machine or device

atp

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US / ˌeɪ tiː ˈpi /

UK / ˌeɪ tiː ˈpi /

A1
  • abbreviation
  • ATP is an acronym

basement

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US / ˈbeɪsmənt /

UK / ˈbesmənt /

B1
  • noun
  • Floor or room in a building beneath the ground

spot

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US / spɒt /

UK / spɑt /

A2
  • noun
  • A certain place or area
  • A difficult time; awkward situation
  • Place or ranking on a list
  • A small amount of (substance help hard work etc.)
  • Mark caused by a drop of liquid, food, etc.
  • verb
  • To see someone or something by chance

room

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US / ru:m /

UK / rum, rʊm /

A1
  • noun
  • All of the people inside a particular room
  • Part of building enclosed by walls, e.g. kitchen
  • Opportunity to exist, happen, or be true
  • verb
  • To share a home with someone

take

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US / teɪk /

UK / tek /

A1
  • noun
  • Filming of a single scene for TV or the movies
  • verb
  • To accept something that is offered
  • To use a method of traveling, e.g. a bus or train
  • To use a camera to make (a photo)
  • To pick up something and go away with it
  • To study a subject in school
  • To attempt to pass (an exam)
  • To require a certain amount of time, money, space

they

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US / ðeɪ /

UK / ðe /

A1
  • pronoun
  • Two or more people, animals, or things

both

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US / bəuθ /

UK / boθ /

A1
  • determiner
  • Used to refer to two things at the same time
  • pronoun
  • Used to refer to two things at the same time

calcium

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US / 'kælsɪəm /

UK / ˈkælsiəm /

C2
  • noun
  • A substance important for making bones and teeth

all

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US / ɔ:l /

UK / ɔl /

A1
  • adverb
  • Completely; totally
  • determiner
  • Being every one of something
  • pronoun
  • 100% of something; the complete amount

its

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US / ɪts /

UK / ɪts /

A1
  • adjecitve
  • Referring to or belonging to ‘it’
  • determiner
  • Of something; belonging or related to something
  • other
  • Possessive form of “it”

produce

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US / prə'dju:s /

UK / prəˈdus, -ˈdjus, pro- /

A1
  • noun
  • Fresh foods such as fruits and vegetables
  • verb
  • To grow something naturally
  • To make something appear
  • To manufacture something using machines
  • To control the making a movie or television show

design

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US / dɪˈzaɪn /

UK / dɪˈzaɪn /

A1
  • noun
  • The way something is planned, to fulfill a purpose
  • verb
  • To plan in a particular way to fulfill a purpose
  • To think of a plan

death

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US / deθ /

UK / dɛθ /

A2
  • noun
  • When someone dies; the end of life

scishow

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US / ə'lɜ:tnəs /

UK / ə'lɜ:tnəs /

A1

their

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US / ðɛː /

UK / ðer /

A1
  • determiner
  • Belonging to them

look

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US / lʊk /

UK / lʊk /

A1
  • noun
  • Person's beauty or physical attractiveness
  • Particular style of dress, clothes, or appearance
  • The way someone, something appears to be
  • Act of searching for or examining something
  • verb
  • To appear to be; seem

prey

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US / preɪ /

UK / pre /

B1
  • noun
  • The victim of another person's aggression
  • other
  • The victim of another person's aggression
  • verb
  • To hunt (other animals) in order to eat them
  • To cause another to be a victim

thank

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US / θæŋk /

UK / θæŋk /

A1
  • verb
  • To tell someone you are grateful to them

community

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US / kə'mju:nətɪ /

UK / kəˈmjunɪti /

A2
  • noun
  • Group of people who share a common idea or area

rely

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US / rɪ'laɪ /

UK / rɪˈlaɪ /

B2
  • verb
  • Depend on with full trust or confidence

have

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US / həv /

UK / hæv /

A1
  • verb
  • To drink, smoke, eat or use something
  • To experience the effects of something
  • To organize an event, or join in an activity
  • To own, possess, or hold something
  • To cause to happen or produce a particular effect

cover

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US / 'kʌvə(r) /

UK / ˈkʌvɚ /

A1
  • noun
  • A different version of another song
  • Bed sheets; blankets
  • (Police or military) protection from attack
  • Amount of money to be paid in an insurance claim
  • Thing you put over something to close or hide it
  • Front and back part of a book or magazine
  • Shelter built to protect from the natural elements
  • verb
  • To record a different version of another song
  • To include as part of its area
  • To put something over something to hide it
  • To discuss a subject in a talk or meeting
  • To form a layer over something so it is hidden
  • To have sufficient funds to pay for something
  • To include something within an agreed limit
  • To report news on TV, radio or in a newspaper
  • (Police or military) to protect from attack
  • To travel a certain distance in a given time
  • To wrap something with something, such as a cloth

without

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US / wɪˈðaʊt /

UK / wɪðˈaʊt, wɪθ- /

A1
  • preposition
  • Not with; not having

end

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US / end /

UK / ɛnd /

A1
  • noun
  • The point where a process or activity stops
  • A point that marks the limit of something; finish
  • Goal or desired result
  • The tip, edge or limit of something
  • verb
  • To be the last part of something

flex

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US / fleks /

UK / flɛks /

B2
  • verb
  • To move a part of the body to stretch muscles

next

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US / nekst /

UK / nɛkst /

A1
  • adverb
  • The one that follows another in time or order
  • At a time or place directly after the present one
  • noun
  • The one that follows after
  • adjecitve
  • Immediately after the previous one
  • First occurrence after the present one

scientist

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US / ˈsaɪəntɪst /

UK / ˈsaɪəntɪst /

A2
  • noun
  • Person who is trained in a science

could

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US / kəd /

UK / kʊd /

A1
  • other
  • Past form of 'can' to mean have ability
  • Used to ask for something politely, or to offer

know

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US / nəʊ /

UK / noʊ /

A1
  • verb
  • To be familiar with a person or place, thing
  • To feel sure or be convinced about something
  • To discover or be aware of something
  • To be able to distinguish
  • To have knowledge of things

air

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US / eə(r) /

UK / er /

A1
  • noun
  • Mixture of gases around the earth that we breathe
  • A person's manner intended to impress others
  • verb
  • To expose to the outside, to dry or freshen
  • To broadcast a TV or radio show
  • To open a subject to discussion and debate

equip

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US / ɪ'kwɪp /

UK / ɪˈkwɪp /

A2
  • verb
  • To provide with necessary materials or skills

full

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US / fʊl /

UK / fʊl /

A1
  • adjecitve
  • Containing all the parts; complete
  • Containing or holding as much as possible
  • Having had enough food
  • adverb
  • In a direct manner; completely

notice

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US / 'nəʊtɪs /

UK / ˈnotɪs /

A1
  • noun
  • Time by when you must leave, e.g. if you are fired
  • Paper with an announcement, e.g. pinned to a board
  • verb
  • To become aware by sight, touch, or hearing

muscle

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US / 'mʌsl /

UK / ˈmʌsəl /

A2
  • noun
  • Physical power
  • Body tissue that moves parts of the body
  • verb
  • To use or muscles of force to get what you want

mixed

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US / mɪkst /

UK / mɪkst /

A2
  • verb
  • To combine two or more things to make one
  • To meet and get along with others, e.g. at a party

sad

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US / sæd /

UK / sæd /

A1
  • adjecitve
  • Unhappy; wishing something hadn't happened

with

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US / wɪð /

UK / wɪð, wɪθ /

A1
  • preposition
  • As an employee of a certain company
  • Against something or someone
  • By using something as a means
  • Due to; because of
  • Including
  • Possessing as a feature
  • Related to
  • (Of the manner/attitude by which you do something)
  • Used to express that people or things are together

blood

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US / blʌd /

UK / blʌd /

A2
  • adjecitve
  • Related by birth; family
  • noun
  • Red liquid in the bodies of people and animals
  • verb
  • To be initiated into something, e.g. a secret club

spider

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US / ˈspaɪdə(r) /

UK / ˈspaɪdɚ /

B1
  • noun
  • Small creature with 8 legs that spins cobwebs

here

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US / hɪə(r) /

UK / hɪr /

A1
  • adverb
  • In this place; at this location, position or time

quick

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US / kwɪk /

UK / kwɪk /

A1
  • adjecitve
  • Using very little time; moving far in little time
  • Learning and understanding rapidly and easily

stuck

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US / stʌk /

UK / stʌk /

A2
  • adjecitve
  • Not able to move
  • verb
  • To push a sharp or pointed object into something
  • To join together using glue or paste
  • To remain in one place or position for a long time

dust

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US / dʌst /

UK / dʌst /

A2
  • noun
  • Fine dry powder that builds up on surfaces
  • verb
  • To apply a fine powder to, e.g. sugar to a cake
  • To wipe something to remove dirt

episode

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US / 'epɪsəʊd /

UK / ˈɛpɪˌsod /

B1
  • noun
  • One separate event in a series of events
  • Show which is part of a larger story

fluid

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US / 'flu:ɪd /

UK / ˈfluɪd /

B2
  • adjecitve
  • A material that can easily flow, e.g. water
  • Able to move smoothly or gracefully
  • Changing often and without warning
  • noun
  • Liquid that flows smoothly, such as water

hydraulic

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US / haɪˋdrɔlɪk /

UK / haɪˋdrɔlɪk /

B2
  • adjecitve
  • Of a system operated by water or other liquids

mode

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US / məʊd /

UK / moʊd /

A2
  • noun
  • Fashion and design
  • Status or way of functioning

stiff

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US / stɪf /

UK / stɪf /

B1
  • adjecitve
  • Frozen still due to fear or anger
  • Not able to be bent
  • noun
  • Slang term for a dead body

will

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US / wɪl /

UK / wɪl /

A1
  • noun
  • Desire or choice of someone
  • Document saying who gets your money when you die
  • Strong desire to do something; determination
  • Desire to do something; strong wish to do
  • other
  • Used with verbs to express the future
  • verb
  • To leave property to someone after your death
  • To use mental effort to make something happen
  • Am (is, are) likely to do
  • To influence someone to do something
  • To make something happen by strongly wanting it

interact

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US / ˌɪntər'ækt /

UK / ˌɪntɚˈækt /

A2
  • verb
  • To talk or do things with each other

imagine

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US / ɪ'mædʒɪn /

UK / ɪˈmædʒɪn /

A1
  • verb
  • To think creatively about; form mental picture of

lightweight

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US / ˈlaɪtweɪt /

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  • Subtitles section
  • Ever gone to sweep up your floor and noticed a little dead spider mixed in with the dust bunnies?
  • If you paused for a closer look, maybe you noticed that its tiny legs were curled up tight against its body.
  • This spidery leg curl of death happens because spiders don't use muscles to extend their legs.
  • They harness the power of fluids instead.
  • Spider legs are basically a series of little tubes.
  • The joint where these tubes connect to the body, what you could think of as the hip, works much how you'd expect.
  • It's equipped with both extensor muscles to extend the legs and flexor muscles to curl them in.
  • So, paired muscles that work against one another, like how your biceps and triceps allow you to both flex and extend your forearm.
  • But the other joints in spiders' legs only have flexor muscles.
  • To straighten out those joints, spiders pressurize them by pumping them full of hemolymph, the spider equivalent of blood.
  • Some scientists think the evolutionary reason for relying on hydraulics is that getting rid of extensor muscles leaves room for bigger, more powerful flexor muscles.
  • And that curling-in motion of flexors is what spiders use to grip their prey and climb your basement walls.
  • So, not having to bother with extensors lets them really maximize their flexing abilities.
  • Spiders can even use their unique leg anatomy to power mighty leaps.
  • First, they pressurize their leg joints while contracting those flexor muscles.
  • Then, they suddenly release them, and the near-instant extension launches them into the air.
  • But when a spider dies, its body experiences all the usual side effects of death, including rigor mortis.
  • That's when a corpse becomes stiff because its muscles contract.
  • And it happens because a dead body stops producing adenosine triphosphate, or ATP, the energy source that powers our muscles.
  • ATP interacts with calcium ions and some specific proteins to control the action of muscles.
  • There's a lot going on at the molecular level here, but the key thing to know is that you need ATP for the muscle to relax.
  • Since a dead body stops producing ATP, the muscles soon run out of the stuff.
  • So they get stuck in clench mode until they decompose enough that rigor mortis ends.
  • And for a spider, being dead also means no more pressurized hemolymph.
  • So there's nothing to combat the flex of those legs, which is why they end up permanently curled.
  • Now, if the thought of spiders stuck in the telltale death pose makes you a little sad, maybe this'll cheer you up.
  • Spiders' hydraulic legs are so cool that some scientists are taking inspiration from them to design robots with joints that are powerful but lightweight and flexible.
  • So the next time you spot a curled-up spider, just imagine that its legacy is an awesome, giant spider-bot.
  • Thanks for watching this episode of SciShow, and specifically, thanks to our patrons on Patreon.
  • Without their support, we wouldn't be able to do what we do here, from covering the science news you need to know to answering quick questions like this.
  • So thanks, patrons!
  • And if you're not a patron but would like to learn more about joining our community of science lovers, you can head to patreon.com slash scishow.