ARE YOU READY???

Look at the picture:

How do you know that mass is conserved?

• There are the same number and color of atoms on both sides of the arrow.

• There are more atoms on one side of the arrow than on the other side.

• The atoms are different colors on one side of the arrow.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Imagine you are doing a science experiment at home. You mix baking soda and vinegar together and observe that they chemically combine to make a new substance. What type of change is this?

• chemical change

• physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

You are conducting a science experiment in your kitchen. You mix two substances together and observe a reaction. What evidence suggests a chemical change has taken place?

• Bubbles are produced

• The water level in the container rises

• The tablets you used dissolve

• The water turns cloudy

Tags

NGSS.MS-PS1-2

You are in a chemistry lab and you see four different images labeled A, B, C, and D. Which image represents a compound?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-1

What part of the atom has the most mass?

• Proton

• Nucleus

• Neutron

• Electron cloud

Tags

NGSS.MS-PS1-1

Which model represents and element?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-1

Which two points show a increase in particle movement?

• AB

• BC

• DC

• CC

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which image shows an increase in particle movement?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-4

How many protons, electrons and neutrons does Iron have?

• 26--26--29

• 27--26--26

• 26--26--26

Tags

NGSS.MS-PS1-1