-GCSE Coursework-Hydrogen Peroxide Experiment

PLANNING

METHOD:
1. Push a potato borer through a potato, which you have placed onto a tile, which is on the table.

2. Using a ruler and a knife carefully cut 1mm thick discs on the tile.

3. Put 40 of these discs into a conical flask and put the lid in its place.

4. Fill a tub with water and place a measuring cylinder, also filled to the top with water, in it upside down.

5. Get the beaker with 20% hydrogen peroxide in it being careful you don’t get any on your skin and especially your eyes. Use a syringe and suck the hydrogen peroxide up to the 20ml mark.

6. Connect the tip of the syringe to the delivery tube leading to the conical flask. Get ready to place the other delivery tube underneath the measuring cylinder as soon as you have released the hydrogen peroxide into the flask.

7. Push the syringe to release the hydrogen peroxide into the flask. The enzymes in the potato cause a reaction.

8. Immediately start the stop clock...