Coin Lab
 1. Place a paper towel on your table and set
the four coins on top of the towel.
 2. Slowly add drops of water to the penny.
Hold the eye dropper no more than 20
centimeters above the coin. Count how many
drops you have to add before the water slides
off the coin. Record one drop less than this
number.
 3. Repeat Step 2 two more time for the penny.
 4. Repeat Steps 2 and 3 for the other three
coins.
Discussion
 1. How did the size of the coins affect the
numbers of drops the coin could hold?
 2. How could you improve this
experiment?
 3. What other experiment could you
conduct with the same materials?
Lab Report
 Question – What do you want to find out?
 Hypothesis – What do you think will happen?
 Procedure – List the materials used. Write detailed steps
describing how the experiment was conducted.
 Remember – Someone else should be able to do this experiment
exactly the same, using only your notes.
 Safety – Are there any safety precautions that need to be
taken?
 Data – Record your data (trials, type of coin, number of drops)
in a table. Create a graph to show this data visually.
 Conclusion/Analysis – What did you find out? Did your results
support your hypothesis? Are your results reliable? How
might the experiment be improved?