Properties of Matter Vocabulary

Front

What is a substance with a pH less than 7 that turns litmus paper red?

Back

An acid.

Front

What term describes something that is very tiny?

Back

Particle.

Front

What is the term for a process that results in a new form of matter and cannot be reversed?

Back

A chemical change.

Front

What is the amount of matter in a substance, measured in grams?

Back

Mass.

Front

What is defined as anything that has mass and takes up space?

Back

Matter.

Front

What is the pH range of acids?

Back

Less than 7.

Front

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

Back

A physical change does not alter the substance's chemical composition, while a chemical change results in a new substance.

Front

What is the term for a substance with a pH greater than 7?

Back

A base.

Front

What is the smallest unit of matter?

Back

An atom.

Front

What is the process called when a solid turns directly into a gas?

Back

Sublimation.