Matter All Around

_________ can exist in all three states: gas, liquid, and solid.

• Space

• Matter

• Energy

• Electricity

Which describes the molecules in a liquid compared to molecules in a solid and gas?

• The molecules of a liquid have intermediate kinetic energy.

• The molecules of a liquid have the greatest kinetic energy.

• The molecules of a liquid have no kinetic energy.

• The molecules of a liquid have the least kinetic energy.

The primary variable that determines whether a specific substance will be a solid, liquid, or a gas is:

• Solubility.

• Density.

• Temperature.

• Malleability.

A teapot filled with water is on the stove. What does the heat from the stove do to the molecules of water in the teapot?

• It makes them move slower.

• It makes them move faster.

• It makes them stay in place.

• It makes them take the shape of the teapot.

Heating is the transfer of ___________ from a warmer substance to a cooler one.

• molecules

• thermal energy

• potential energy

• electrons

If you increase the number of collisions between gas molecules and the container holding the gas, which will also increase?

• Pressure

• Chemical energy

• Specific heat

• Volume

Which change takes place at the freezing point of a substance?

• A gas becomes a liquid.

• A solid becomes a gas.

• A liquid becomes a solid.

• A gas becomes a solid.

Water freezes at what temperature?

• 32 degrees Celsius

• 4 degrees Celsius

• 0 degrees Celsius

• -10 degrees Celsius

What happens to a substance when it changes from a liquid to a solid?

• It gains mass.

• It gains energy.

• It loses mass.

• It loses energy.

What happens to water when its molecules slow down and move closer together?

• It separates into hydrogen and oxygen.

• It turns into liquid nitrogen.

• It turns into water vapor.

• It turns into ice.