Matter and Energy Review

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What is energy?

Back

Energy is the ability to do work or cause change.

Front

What is a conductor?

Back

A conductor is a material that allows electricity to flow through it easily.

Front

What is an insulator?

Back

An insulator is a material that does not allow electricity to flow through it easily.

Front

What is density?

Back

Density is the mass of a substance divided by its volume.

Front

What happens to thermal energy when you wear a jacket on a cold day?

Back

The jacket insulates and helps retain body heat, keeping you warm.

Front

What is the physical state of vegetable oil?

Back

Vegetable oil is a liquid at room temperature.

Front

How can you separate iron filings from a mixture?

Back

You can use a magnet to attract and remove the iron filings.

Front

What is the relationship between density and buoyancy?

Back

An object will float if it is less dense than the fluid it is in.

Front

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

Back

A physical change alters the form of a substance, while a chemical change alters its chemical composition.