Atoms, Molecules, Mixtures, Solutions

All matter is made up of small particles called

• chemicals

• compounds

• atoms

• molecules

When atoms join other atoms, ___________ are formed.

• compounds

• molecules

• atoms

• elements

Matter that is made up of only one kind of atom is called a/an

• element

• compound

• atom

• gas

A ___________________________ occurs when two or more elements combine to form a new substance.

• physical change

• compound

• chemical change

• numerical expression

Water or H₂0 would be considered a/an __________________.

• atom

• molecule

• element

• compound

True or False: Rust is the result of a physical change.

• True

• False

Burning wood in a fireplace is a

• Physical change

• Chemical change

Rusted pots and pans

• Physical change

• Chemical change

Cutting a piece of paper with scissors

• Physical change

• Chemical change

Heating up a marshmallow over a fire

• Physical change

• Chemical change