Properties and Changes in Matter

Front

What is the definition of matter?

Back

Matter is anything that has mass and takes up space.

Front

What are the two main categories of changes in matter?

Back

Physical changes and chemical changes.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances.

Front

Give an example of a physical change.

Back

Melting ice is an example of a physical change.

Front

Give an example of a chemical change.

Back

Burning wood is an example of a chemical change.

Front

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

Back

A physical property can be observed without changing the substance's identity, while a chemical property can only be observed during a chemical reaction.

Front

What is the term for the amount of space an object occupies?

Back

Volume.

Front

What is the term for the number of times a data value occurs?

Back

Frequency.

Front

What happens to the composition of a substance during a physical change?

Back

The composition of the substance remains the same.