Chapter 1 Test Review

A crackling fire burns in a fireplace. Its smoke rises up the chimney. Which of these properties of the fire is a form of matter?

• the crackling sound
• the glowing light
• its heat
• smoke

The pull of gravity on a camera is the camera's

• mass
• weight
• volume
• matter

Which of these can be used to find the volume of a juice box?

• A. length · width · height
• B. mass ÷ volume
• C. mass · weight · length
• D. mass ÷ weight

The basic unit of matter is

• a mixture
• a substance
• an atom
• a compound

The atoms and molecules of a rock

• don't move at all
• slide from place to place through the rock
• shake back and forth in place
• move only when the rock in shaken

A substance that contains only one type of atom is a(n)

• compound
• element
• heterogeneous mixture
• homogeneous mixture

Which of these is a pure substance?

• bread
• table salt
• soil from a garden
• sea water

Melted candle wax has no fixed shape, but it does have a fixed volume. Thus, melted candle wax is a

• solid
• pure substance
• liquid
• gas

A sealed metal container holds a gas. What happens when the container is heated?

• The gas exerts more pressure.
• The gas decreases in volume
• The mass of the gas increases.
• The weight of the gas increases.

Two oxygen atoms bond with one carbon atom to form carbon dioxide. Carbon dioxide is a(n)

• element
• atom
• molecule
• mixture