What has mass and takes up space?
Matter
Which state of matter keeps its own shape?
Solid
An ice cube turns into liquid water. What is this called?
Melting
You tear a sheet of paper. What kind of change is this?
Physical change
Nuts and raisins are mixed in a bowl. What did you make?
A mixture
What tells how much matter is in an object?
Mass
Which state of matter flows and takes the shape of its cup?
Liquid
Water turns into ice. What is this called?
Freezing
A nail rusts. What kind of change is this?
Chemical change
Sugar dissolves evenly in water. What did you make?
A solution
What tells how much space an object takes up?
A. Mass
B. Color
C. Volume
C. Volume
Which state of matter spreads out to fill its container?
A. Solid
B. Gas
C. Liquid
B. Gas
A puddle dries in the sun. What happens to the water?
A. It freezes.
B. It melts.
C. It evaporates.
C. It evaporates. The liquid water becomes water vapor.
Why is melting butter a physical change?
A. It becomes a new substance.
B. It is still butter.
C. It disappears.
B. It is still butter.
Sugar dissolves in water. Which property does this show?
A. Solubility
B. Magnetism
C. Hardness
A. Solubility means being able to dissolve.
A magnet picks up an iron paper clip. Which property does this show?
A. Color
B. Volume
C. Magnetism
C. Magnetism
How do particles in a solid move?
A. They spread far apart.
B. They vibrate in place.
C. They do not move at all.
B. They vibrate in place.
Water vapor cools into liquid drops on a cold cup. What is this called?
A. Condensation
B. Melting
C. Freezing
A. Condensation
Which is a chemical change?
A. Cutting paper
B. Burning wood
C. Melting ice
B. Burning wood. New substances form.
What tool can separate iron pieces from sand?
A. A ruler
B. A thermometer
C. A magnet
C. A magnet
Two blocks are the same size. Block A has more mass. Which is denser?
A. Block A
B. Block B
C. Both have the same density
A. Block A. It has more mass in the same amount of space.
Why can air be squeezed into a smaller space?
A. Its particles disappear.
B. Its particles stop moving.
C. There is lots of space between its particles.
C. There is lots of space between its particles.
Dry ice changes straight from a solid to a gas. What is this called?
A. Freezing
B. Sublimation
C. Melting
B. Sublimation
You seal 50 grams of ice in a bag. It melts, and nothing leaves the bag. How much water is there?
A. 25 grams
B. 50 grams
C. 100 grams
B. 50 grams. Melting does not change the mass.
Salt is dissolved in water. How can you get the salt back?
A. Let the water evaporate.
B. Use a magnet.
C. Stir it faster.
A. Let the water evaporate. The salt stays behind.