Pure Substances vs. Mixtures

An element

• contains one type of atom

• contains two or more different type of atoms

• is two or more different substances not chemically combined

• is the way something is put together or combined

Tags

NGSS.MS-PS1-1

A pure substance is

• the way something is put together or combined

• two or more different substances not chemically combined

• a kind of matter that always has a specific composition chemically combined.

• a small number that tells the amount of each element in a compound

Tags

NGSS.MS-PS1-4

Composition means

• a substance that contains one type of atom

• the way something is put together or combined.

• two or more different substances not chemically combined.

• subscript.

Tags

NGSS.MS-PS1-1

What is a liquid, gas, or solid evenly mixed unable to see all the different parts?

• a chemical formula

• a compound

• an element

• a solution

Contains two or more different substances that are physically, not chemically, combined

• a mixture

• an element

• a compound

• a chemical formula

What is this?

• element

• compound

• mixture

Tags

NGSS.MS-PS1-1

What is this?

• element

• compound

• mixture

Tags

NGSS.MS-PS1-1

What is this?

• element

• compound

• mixture

Tags

NGSS.MS-PS1-1

What is this?

• element

• compound

• mixture

Tags

NGSS.MS-PS1-1

What is this?

salt (NaCl)

• element

• compound

• mixture

Tags

NGSS.MS-PS1-1