Energy Review 4th Grade Science

Front

What is the source of all sounds?

Back

A vibration.

Front

What do batteries do?

Back

Batteries convert chemical energy to electrical.

Front

Why is the temperature higher in one cup of water?

Back

Because that cup of water that is hottest, has the most energy.

Front

How can you control the brightness of a light bulb?

Back

Change the amount of energy that is being transferred to the bulb.

Front

What is Khadija trying to find out by measuring the temperature of water in sunlight?

Back

Does energy from the sun heat up the water in the glass?

Front

What is energy?

Back

The ability to do work or cause change.

Front

What is thermal energy?

Back

The energy that comes from the temperature of matter.

Front

What is the difference between potential energy and kinetic energy?

Back

Potential energy is stored energy, while kinetic energy is energy of motion.

Front

What is a conductor?

Back

A material that allows electricity to flow through it easily.

Front

What is an insulator?

Back

A material that does not allow electricity to flow through it easily.