nouns
a group of two or more atoms
or
smallest identifiable unit
molecule
very, very small
tiny
get smaller
shrink
combination of different things
mixture
nothing inside
empty
slowly get bigger
expand
when something is moving
motion
opposite of more
less
becoming longer or expanding without breaking
stretch
describing how hot or cold something is
temperature
opposite of dead
alive
expand to a bigger size than normal
swell up
a scientific process to find out new information or confirm or show something we already know
experiment
something that cannot be seen
invisible
(phrase) fill something, make it full
or
use space
take up