ch. 16 - States of Matter

A(n) ______ will always take the shape and volume of its container.

• gas

• liquid

• solid

• crystal

A state of matter with a definite volume, but no definite shape is a(n) _______.

• liquid

• solid

• gas

• plasma

The ____ of a gas is the force of its outward push of the molecules against the walls of its container.

• pressure

• gravity

• surface tension

• structure

The _______ is a measure of the average speed of the particles in a substance.

• temperature

• density

• volume

• mass

The molecules in the picture are tightly held together in a regular pattern with little movement. This is a ________.

• solid

• liquid

• gas

• plasma

What happens to the particles when I add heat?

• The particles get bigger
• The particles get smaller
• The particles get slower
• The particles get faster

Which state of matter has the highest kinetic energy?

• solid

• liquid

• gas

• amorphous solid

The steam coming off the pot of boiling water is an example of....

• a solid becoming a liquid
• a liquid becoming a solid
• a liquid becoming a gas
• a gas becoming a liquid

The phase change from water vapor to liquid water is known as...

• evaporation
• precipitation
• condensation
• sublimation

5. What is it called when a solid turns directly into a gas?

• Sublimation

• Condensation

• Deposition

• Evaporation