Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

Define an element.

Back

An element is a substance that is made of only one type of atom.

Front

What type of change occurs when Jonah crushes cans?

Back

A physical change.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms held together by chemical bonds.

Front

What is a compound?

Back

A compound is a molecule containing more than one element.

Front

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

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What are the three states of matter?

Back

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

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.