Front

What property does sugar maintain after dissolving in water?

Back

Its sweetness.

Front

What happens to the physical properties of substances in a mixture?

Back

Some mixtures maintain physical properties of their substances after they are combined.

Front

What is the process called when water changes from a liquid to a gas?

Back

Evaporation.

Front

What tools should students use to measure time and distance in an investigation?

Back

Timer and meter stick.

Front

What is a mixture?

Back

A combination of two or more substances where each retains its own properties.

Front

What is the definition of a circuit?

Back

A closed path through which an electric current flows.

Front

What happens to light bulbs in a circuit when switches are closed?

Back

The light bulbs will glow if the circuit is complete.

Front

What is the definition of force?

Back

A push or pull that can change the motion of an object.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is the definition of evaporation?

Back

The process by which liquid water turns into water vapor (gas).