What are Pennies Made of? Name ______________________________

Materials List: balance, graduated cylinder, transfer pipette, pennies, samples of the

following metals: iron, copper, tungsten, lead, zinc, and aluminum

1. Make your prediction – what substance do you think pennies are made of?

This does not have to be in an “if, then, because” format

2. On what evidence did you base your prediction?

3. Using only the materials listed above, explain how you plan to test your hypothesis.

Make a clear statement about how you would test the hypothesis. You don’t have to have procedures, just a basic description of how to perform the test.

What are you going to compare? How will you know if this supports your hypothesis?

4. In the space below, record and analyze your data:

Record data, included calculated values (such as density)

5. What conclusion did you reach regarding your hypothesis?

Remember to support or reject hypothesis, and use data to support your claim.

6. If the data did not support your initial hypothesis, continue testing other samples until

you figure out which substance pennies are made of.

It may not perfectly match any of the samples, but it should come closer to one than any of the others.

7. What substance are pennies made of? Present your evidence.

Choose only one substance remember to give evidence

8. Which sample had the greatest…

Mass? Volume? Density?