Engage Pretend you have a container of salt and a container of trail mix. How could you physically

separate the sodium and the chlorine from the salt? How could you separate the pieces in the

train mix?



• Atoms are the blocks of . An atom is the

unit of an element that maintains the properties of that

element.

o They combine with another to make different .

• A molecule is or more atoms that are

combined.

• Elements are made up of one or more of the same type of

that are chemically .

• Elements can not be broken down into substances.

• Compounds are molecules that are made up of different elem