Experiment-Coin Lab

On the 3rd of February,Thursday,2011, we did an experiment. What you had to do in the experiment was to put how many drops you can on a penny or a 5-cent euro coin. Here is what we needed to do.

Part A:
Step 1: Rinse the coin and dry it completely.
Step 2: Place the coin on a dry towel.
Step 3: Use an eye dropper to place drops of water on the penny (one at a time) until ANY amount of water runs over the edge of the penny.
Step 4: Record the number of drops for that trial in the table.

There was also a part B.

Part B:
Step 1: Rinse the coin and dry it completely.
Step 2: Place the coin on paper towel.
Step 3: Hold the coin with the tweezers provided, then dip it into the testing liquid (water). Allow extra liquid to drip off the coin into the container before going to the next step.
Step 4: Place the coin on a dry spot on a paper towel. Place drops of water on the coin (one at a time) until ANY amount of water runs over the edge of the coin.

Part A:

Trial 1: 44 drops

Trial 2: 24 drops

Trial 3: 27 drops

Trial 4: 48 drops

Trial 5: 17 drops

Mean (average): 32


Part B was better than Part A.

Part B:

Trail 1: 61 drops

Trial 2: 56 drops

Trial 3: 201 drops

Trial 4: 72 drops

Trial 5: 32 drops

Mean (average): 100