States of Matter

Three examples of chemical changes are ____.

•  sawing of wood, crushing a can, and toasting a marshmallow
• burning of gasoline, rotting of an egg, and exploding of fireworks
•  boiling of water, bursting of a balloon, and melting of a candle
• freezing of water, evaporation of gasoline, and rusting of a nail

A gas

• has a definite shape but no definite volume
• has a definite volume but no definite shape
• has fast-moving particles

At higher temperatures

• particles in an object have less energy
• particles in an object move faster
• a gas contracts

Melting

• liquid to solid
• solid to liquid
• solid to gas
• gas to liquid

What is a characteristic of matter that can be measured or observed without changing matter into something new?

• matter
• molecule
• physical property
• states of matter

Which state of matter has no definite volume or shape.

• solid 
• liquid 
• gas

List the three states of matter in order of the strength of attraction between molecules from least to greatest.

• solid, liquid, gas
• liquid, soild, gas
• gas, liquid, solid
• gas, solid, liquid

A liquid becomes a gas during

• evaporation
• condensation
• sublimation
• deposition

If energy as heat is removed, most liquids will eventually

• freeze
• burn
• evaporate
• diffuse

Molecules in a ___________ take the shape and volume of their container. 

• Solid
• Liquid
• Gas