Chemical Compounds In Cells

What are the gases present in our air?

A ____ is any substance that cannot be broken down into simpler substances.

The smallest unit of an element is called

• compound

• molecule

• atom

An element is made of only one type of atom

• true

• false

What are some elements found in living things? (multiple answers)

What is the compound carbon dioxide made up of?

• carbon

• oxygen

• dioxide

• hydrogen

Tags

NGSS.MS-PS1-1

When two elements combine chemically they form a

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The smallest unit of any compound is

• molecule

• atom

• element

• matter

Tags

NGSS.MS-PS1-1

A molecule of carbon dioxide consists of how many of each atom?

Tags

NGSS.MS-PS1-1

Like carbon dioxide, water is a compound

• true

• false

Tags

NGSS.MS-PS1-1