States of Matter and Energy

Front

What happens to particles in an object at higher temperatures?

Back

Particles in an object move faster.

Front

At 0 degrees Celsius, what happens to water?

Back

Water freezes.

Front

What is a state of matter that has a definite volume and shape?

Back

Solid.

Front

What happens to the energy and motion of carbon dioxide molecules as dry ice changes from solid to vapor at room temperature?

Back

The energy of the molecules and the spaces between them increase.

Front

How do water molecules behave as ice melts into liquid water?

Back

The molecules in the solid are unmoving in a rigid lattice. As the ice melts, the molecules start to vibrate, and then release from the lattice structure, moving freely as they drift farther apart to form a liquid.

Front

What is the definition of a solid?

Back

A state of matter that has a definite shape and volume.

Front

What is the definition of a liquid?

Back

A state of matter that has a definite volume but takes the shape of its container.

Front

What is the definition of a gas?

Back

A state of matter that has no definite shape or volume and expands to fill its container.

Front

What is evaporation?

Back

The process by which liquid turns into vapor.

Front

What is condensation?

Back

The process by which vapor turns into liquid.