Matter Vocab

Front

Anything with mass and volume

Back

matter

Front

Smallest particle of an element

Back

atom

Front

A pure substance made of one type of atom.

Back

element

Front

Created when two or more atoms join together.

Back

molecule

Front

Created when different atoms join together

Back

compound

Front

To increase in size, volume, or quantity; atoms gain heat energy, move faster, and spread out.

Back

expand

Front

A tiny portion or speck

Back

particles

Front

Heat energy affects molecular motion in a substance.

Back

thermal energy

Front

A rapid, back and forth motion

Back

vibrate

Front

Particles are closely packed, vibrating in place; definite shape and volume.

Back

solid