Evidences of
chemical change
Octasignal Labs
Chemical Change
Demonstrations
Chemical Reactions
100

Name three evidences of chemical change 

What is Bubbles,Precipitate,Energy Released, Odor,Temperature Change,Color Change,Composition Change, Burning?

100

What does octa stand for?

What is the eight evidences of chemical change?

100

Name the two chemical changes I mentioned in every day processes 

What is rusting of iron and combustion

100

What was my first demonstration?

What is elephant toothpaste

100

A chemical reaction is what

What is process

200

True or false: Boiling is an evidence of chemical change 

What is false

200

What did I say curiosity drives?

What is discovery 

200

True or false: Boiling water is a chemical change.


What is False (that’s a physical change)

200

Elephant toothpaste is an example of what reaction 

What is catalytic decomposition?


200

True or false: a chemical reactions changes the substance into one or more different substances 

What is true