Introduction to Matter

Front

What is an element?

Back

Substances that are made of only one type of atom.

Front

What is density?

Back

Mass per unit volume.

Front

What type of change occurs when crushing a can?

Back

A physical change.

Front

What is matter?

Back

Anything that has mass and takes up space.

Front

What is a compound?

Back

A molecule containing more than one element.

Tags

NGSS.MS-PS1-1

Front

What is the smallest unit of matter?

Back

An atom.

Tags

NGSS.MS-PS1-1

Front

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

Back

A physical change alters the form of a substance, while a chemical change alters its chemical composition.

Front

What is a mixture?

Back

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

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Tags

NGSS.MS-PS1-5

Front

What is a molecule?

Back

Two or more atoms bonded together.

Tags

NGSS.MS-PS1-1