Elements & Compounds Review

What is an element?

• an unpure substance made up of molecules

• molecule

• a pure substance made up of 1 type of atoms

• different elements

Tags

NGSS.MS-PS1-1

What is the smallest unit of an element?

• elemental parts

• mass

• atom

• stars

Tags

NGSS.MS-PS1-1

A compound is...

• 2 or more different elements together that makes something new

• 1 element with a lot of atoms

• something we measure to get weight

• nonecompoucomp

Tags

NGSS.MS-PS1-1

The smallest part of a compound is...

• atom

• molecule

• trees

• weight

Tags

NGSS.MS-PS1-1

How can you identify an element?

• by its chemical trace

• by its chemical symbol

• The color of each part

• state of mind

Which down below is a chemical Symbol?

• He

• LiH

• CaCl

• NiO + H

How can you identify a compound?

• proton

• molecular

• radioactivity

• chemical formula

Tags

NGSS.MS-PS1-1

Which down below is a chemical formula? (Hint: compounds are represented by chemical formulas)

• O

• CaCl

• Po

• Ne

Tags

NGSS.MS-PS1-1

Ca is a ...

• compound

• element

HCl (the "l" is a lowercase L)

• element

• compound

Tags

NGSS.MS-PS1-1