It is technically illegal to do the Copper to Gold experiment on a two pence coin from the United Kingdom because there is a law that states it is illegal to “deface coins of the land”.
10T9 group effort
Magic bottle – potassium permanganate reduces sugar to oxidate in distilled water. When shaken it changes colour.
Stay Puft – marshmallow expands due to an absence of air in the vacuum chamber
Ice to Fire – calcium carbide granuals reacts with the ice water to create a etylene gas which is flammable.
Elephant toothpaste – yeast acts as a catalyst to remove oxygen from hydrogen peroxide. The experiment creates a reaction called an exothermic reaction.
Copper to gold – copper is dipped in sodium zincade then coated in zinc. When heated the copper forms an alloy of brass which appears gold in colour.
Ethan Humble year 9 submitted an excellent post, I have saved it for later consideration, but it was so good I had to pull it down, as it would spoil the fun for everyone else! Well done Ethan what a start!
Pretty impressive Ethan. I’m going to remove your post as it is so good and detailed, you kind of killed it for everyone else! You were just off on the colour changing bottle, but you described another good demo called ‘blue bottle’ well done. Very impressive.
ScienceCCW 
It is technically illegal to do the Copper to Gold experiment on a two pence coin from the United Kingdom because there is a law that states it is illegal to “deface coins of the land”.
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Its a temporary coating, which is now gone! Come and collect it from S11 if you want. 😊
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10T9 group effort
Magic bottle – potassium permanganate reduces sugar to oxidate in distilled water. When shaken it changes colour.
Stay Puft – marshmallow expands due to an absence of air in the vacuum chamber
Ice to Fire – calcium carbide granuals reacts with the ice water to create a etylene gas which is flammable.
Elephant toothpaste – yeast acts as a catalyst to remove oxygen from hydrogen peroxide. The experiment creates a reaction called an exothermic reaction.
Copper to gold – copper is dipped in sodium zincade then coated in zinc. When heated the copper forms an alloy of brass which appears gold in colour.
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Ethan Humble year 9 submitted an excellent post, I have saved it for later consideration, but it was so good I had to pull it down, as it would spoil the fun for everyone else! Well done Ethan what a start!
LikeLike
Pretty impressive Ethan. I’m going to remove your post as it is so good and detailed, you kind of killed it for everyone else! You were just off on the colour changing bottle, but you described another good demo called ‘blue bottle’ well done. Very impressive.
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