Unit 3 Vocabulary

two or more substances combined that keep their identities.

• Compound
• Mixture
• Element
• Atom

A mixture that has the same composition throughout.

• mixture

• Compound
• Solution

• Element

The state of matter in which a substance has a definite shape and volume.

• Gas
• Plasma
• Liquid
• Solid

The state of matter in which the substance has a definite volume but takes the shape of it's container.

• Solid
• Gas
• Plasma
• Liquid

The state of matter in which a substance does not have a definite shape or volume

• Solid
• Liquid
• Gas
• Plasma

Ice begins to _______________ when the temperature gets about 32 degrees fahrenheit.

• melt
• freeze
• boil
• evaporate

Water _____________ when it freezes and _________ when it is heated.

• expands, contracts
• contracts, expands
• vaporizes, solidifies
• solidifies, vaporizes

What is it called when a liquid turned to vapor or gas?

• Condensation
• Evaporation
• Sublimation
• Melting

A substance that has less _____________ than the water will float

• density
• color
• weight
• volume

The amount of space an object takes up

• Volume
• Weight
• Height
• Color