Modeling Matter Unit Review

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What are the three states of matter?

Back

The three states of matter are solid, liquid, and gas.

Front

What is a property of solids?

Back

Solids have a definite shape and volume.

Front

What is a property of liquids?

Back

Liquids have a definite volume but take the shape of their container.

Front

What is a property of gases?

Back

Gases have no definite shape or volume and expand to fill their container.

Front

What happens to the molecules in a solid when it is heated?

Back

The molecules in a solid move faster and may change to a liquid.

Front

What is a chemical change?

Back

A chemical change occurs when a substance transforms into a different substance with new properties.

Front

What is a physical change?

Back

A physical change is a change in which the form or appearance of a substance changes, but its composition remains the same.

Front

How can you identify a new substance has formed?

Back

A new substance can be identified by observing changes in properties such as color, temperature, or state.

Front

What is density?

Back

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