Let's Make Oxygen!

1. Draw and describe what you see in the jar when you first put the potatoes and peroxide in.

2. Draw and describe what you see in the jar 20 minutes later


What is happening?
A REACTION! The reaction between the potatoes and peroxide produces OXYGEN in the jar!


3. What happens when the glowing wooden splint is put into the jar?




What is happening?
needs OXYGEN!


4.What happens when the steel and fire enters the jar...

What do you PREDICT will happen?




What do you SEE happening?




WHY did it happen?What is your HYPOTHESIS?




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