Physical and Chemical Changes

How do we know if it is a chemical change?

• can be undone
• cannot be undone
• both
• none

Tags

NGSS.MS-PS1-2

Ice can be a physical change?

• False
• True

Tags

NGSS.MS-PS1-4

What kind of properties can only be observed when a substance changes into a different substance?

• physical properties
• chemical properties
• liquid properties
• real properties

Tags

NGSS.MS-PS1-2

Is hammering wood together to build a house a chemical or physical change?

• chemical
• physical

Tags

NGSS.MS-PS1-2

Is burning wood a chemical or physical change?

• chemical
• physical

Tags

NGSS.MS-PS1-2

Which is a physical change?

• burning match 
• vinegar in baking soda 
• melting butter
• cooking an egg

Tags

NGSS.MS-PS1-4

What is an example of a Chemical change?

• Ripped paper 
• boiled egg
• cracked egg
• sugar in water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The melting of wax is an example of a

• chemical change
• physical change

Tags

NGSS.MS-PS1-4

Digesting your food is an example of 

• chemical change
• physical change

Tags

NGSS.MS-LS1-7

NGSS.MS-PS1-2

KMnO_{4
How many atoms of oxygen are in this molecule?}

• 1
• 2
• 4
• 6

Tags

NGSS.MS-PS1-1