Physical and Chemical Changes and Chemical Change Indicators

Pushing, pulling, twisting, and bending are examples of 

• physical change

• chemical change

As you watch the paper burn, what you see is a ____________.

• physical change.

• chemical change.

Is this a chemical or physical change?

• chemical

• physical

What signs of a chemical change (chemical change indicators) do you see? 

• The color changed

• It released gas

• It released heat

• It produced a smell

• None

What signs of a chemical change do you see here?

• this is not a chemical change

• changing color

• odor is produced

• only the state of matter is changing 

What type of change was this? 

• Physical Change

• Chemical Change

What signs of a chemical change (chemical change indicators) do you see happening here? 

• Change in color

• Releases Gas

• Produces a Smell

• Change in temperature

What type of change is this? 

• Chemical Change

• Physical Change

What change is happening here? 

• Physical Change

• Chemical Change

What type of change is this? 

• Chemical Change

• Physical Change