States of Matter Review

All matter is made up of extremely small particles called:

• Nanospecks

• Dust

• Atoms

• Mass

The 3 basic states of matter are:

• solid, gel, liquid

• gel, liquid, gas

• air, water, land

• solid, liquid, gas

A substance in a solid state has atoms that are:

• packed close together

• Flow in a contained space

• moving freely

• Large enough to see

When heat is added, a solid can become a liquid:

• True

• False

Liquids are able to change their shape by flowing:

• True

• False

When heat is added to a liquid, it becomes a:

• Gas

• Melted

• Solid

• Compressed

When heated, the atoms in a substance:

• are destroyed

• become invisible

• move faster

• slow down

Most substances contract (or reduce in size) when heated:

• True

• False

Most substances can exist as a solid, liquid or gas, depending on:

• Density

• Temperature

• Mass

• Volume

Water drops stay together on wax paper and they don’t break apart easily. This is mainly because:

• Water molecules are small

• Water molecules are in motion

• Water molecules are attracted to each other

• Water molecules are wet