Hello my name is Emily Harriet!

This year  with my group, we studied about electrolysis. Our key question is "How and why  can we depose a methal of an other methal ?"

During the project we carry out experiments. I found things to do a experiment which name is GALVANISATION.

 For this experiment I need:

-a balance
-a piece of copper
-zinc powder
- a hot plate
-soda powder
-a beaker
- water

In the first time, in the beaker heat 200 ml of water. Add 2.0g of zinc powder and 2.0g of soda powder, wait 2 minutes.
Then we introduce the piece of copper in the beaker. We need to wait 20 minutes. A few minutes later the piece of copper is totally covered of zinc.
In the second time, we place the piece of copper on the hot plate. 40 minutes thanks to the mixture the piece of copper has become bras.