Matter Test Review #1 (and surface area)

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances, such as rust forming on metal.

Front

Give an example of a chemical change.

Back

The metal of a car turning to rust.

Front

What happens to the rate of chemical reactions at higher temperatures?

Back

Higher temperatures increase the rate of chemical reactions.

Front

Do atoms have mass?

Back

Yes, atoms have mass.

Front

What is decomposition in chemistry?

Back

Decomposition is a chemical reaction where a compound breaks down into simpler substances.

Front

How can you make decomposition happen faster?

Back

By piling the matter up to let heat build up inside.

Front

What happens when sugar is added to hot water?

Back

The sugar dissolves faster in hot water than in cold water.

Front

Which student likely added sugar to hot water?

Back

Student A, who had sugar dissolve in 1.5 minutes.

Front

What is the definition of matter?

Back

Matter is anything that has mass and takes up space.

Front

What are the three states of matter?

Back

Solid, liquid, and gas.