States of Matter

Describe what happens to the molecules (particles) in the ice as the temperature of the ice increases

• the molecules lose energy and slow down

• the molecules lose energy and move faster

• the molecules gain energy and slow down

• the molecules gain energy and move faster

Why does a snowman start to slump as it melts?

• Its molecules absorb heat energy and move farther apart.

• Its molecules release heat energy and move farther apart.

• Its molecules absorb heat energy and move closer together.

• Its molecules release heat energy and move closer together.

As a substance cools from a gaseous state, to a liquid, then a solid, what happens to its particles?

• They increase in size.

• They move closer together.

• They move farther apart.

• They disappear.

The diagram represents three phases of matter labeled A, B, and C. Which identify the phases of matter correctly?

• solid, liquid, and gas

• gas, liquid, and solid

• liquid, solid, and gas

• liquid, gas, and solid

Compared to ice, how do molecules of water behave

• They move less freely.

• They are locked into a crystal lattice.

• They move more freely.

• They bounce off one another randomly.

What do water vapor, liquid water, and ice have in common?

• The same chemical properties.

• The same amount of energy.

• The same physical properties.

• The same crystal lattice structure.

What is the easiest way to add energy to matter?

• cooling it

• decreasing pressure

• heating it

• decreasing temperature

How do the molecules of a gas behave?

• They bounce around randomly.

• They are locked in a crystal lattice.

• They vibrate in place.

• They clump together.

All matter has ...

• density, volume

• volume, mass

• density, volume, mass

• mass. density

Where can matter be found?

• in restaurants

• in schools

• in the ocean

• everywhere