Chemical Changes and Physical Changes

which of these example is a physical change?

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is the picture chemical or physical

• chemical

• physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

which one is not an indicator of a chemical change

• formation of gas

• formation of a solid

• formation of liquid

• change of colour

• change in temperature

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NGSS.MS-PS1-2

what is a physical change

• its when a transformation doesn't change the nature of the molecules in matter

• its when a transformation change the nature of the molecules in matter

• its when a transformation change the nature of the molecules in substance

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NGSS.MS-PS1-4

Select all of the following examples that are chemical changes​ ​ (a)   ​ (b)   ​ (c)  

• Breaking a piggy bank

• fireworks exploding

• getting a haircut

• melting icicle

• hammering metal

• mixing baking soda and vinegar

• a rusty nail

Tags

NGSS.MS-PS1-2

If you burn paper, the ​ (a)   in the paper change to molecules of ash and smoke. This is a ​ (b)   change.

• chemical

• molecules

• physical

• liquid

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Which is a chemical change and which is a physical change?

b

a

Photosynthesis

Dissolving

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

is it physical

• yes

• no

• any of the answer

Tags

NGSS.MS-PS2-1

1. Sugar dissolves in warm water
 
 

• Physical change

• Chemical Change

A nail rusts.
 

•  Physical Change

• Chemical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5