Describing Matter

What is an element?

• two or more types of matter that are mixed together but NOT chemically combined

• a pure substance that is made of one type of atom and cannot be broken down into other substances

• basic particle from which all elements are made

• substance formed from 2 or more DIFFERENT elements that are chemically combined in a set ratio

What is an atom?

• basic particle from which all elements are made

• a substance formed from two or more different elelments

• 2 or more types of matter mixed together but not chemically combined

• pure substance made of only one type of atom

Tags

NGSS.MS-PS1-1

What is a compound?

• pure substance made of only one type of atom that can't be broken down

• basic particle from which all elements are made

• 2 or more types of matter that are mixed together but NOT chemically combined

• substance formed from 2 or more different elements that are chemically combined in a set ration

What is a mixture?

• pure substance formed from 2 or more different elements that are chemically combined in a set ratio

• 2 or more types of matter that are mixed together but NOT chemically combined

• basic particle from which all elements are made

• pure substance made of only one type of atom that cannot be broken down into any other substance

NaCl and CO are example of what?

• chemical bonds

• chemical changes

• chemical formulas

• chemical transformations

Tags

NGSS.MS-PS1-1

Compounds can be easily separated by physical means.

• true

• false

H2O and OH2 are the same thing.

• true

• false

Tags

NGSS.MS-PS1-1

Oxygen (O2) is a(n) ....

• element

• compound

• mixture

Tags

NGSS.MS-PS1-1

Sodium chloride (NaCl) is a(n) ...

• element

• compound

• mixture

Tags

NGSS.MS-PS1-1

Hydrogen (H) is a(n) ....

• element

• compound

• mixture