Big Idea 8 and 9

Front

What energy can be generated from falling water?

Back

Electrical energy

Front

How can you observe physical properties?

Back

By using your senses

Front

What happens to a boat when it rusts?

Back

It deteriorates due to oxidation.

Front

What are the three states of matter?

Back

Solid, liquid, and gas

Front

What causes a change in the state of matter?

Back

Temperature

Front

What is electrical energy?

Back

Energy caused by the flow of electric charge.

Front

What is a physical property?

Back

A characteristic that can be observed without changing the substance.

Front

What happens to water when it freezes?

Back

It changes from a liquid to a solid state.

Front

What is the process of evaporation?

Back

The change of a liquid into a gas.

Front

What is condensation?

Back

The process of gas turning into a liquid.