Electricity: Balloon Lab
As you already know, balloons can be charged by static electricity.  This lab asks you to generate and test hypotheses about how static electricity behaves.

Experiment #1: What is the greatest number of hole punches you can pick up with the balloon?

Hypothesis:

Experimental Procedure:
How did you generate the static charge?

Observations:
Draw/Describe the way the hole punches were attached to the balloon.

What was the maximum number of hole punches you could pick up?

How far away (in cm) could the balloon pick up the hole punches?

Explanation/Conclusion:
What could/did you do to increase the number of hole punches picked up by the balloon?

Experiment #2: How can you get rid of the static charge on the balloon?

Hypothesis:

Experimental Procedure:
How did you determine whether there was any charge left in the balloon?

Explanation/Conclusion:
What are some other ways we can eliminate (or redistribute) charge in other things besides balloons?

Experiment #3: Will a charged balloon affect the flow of water?

Hypothesis:

Experimental Procedure:

Observations:
Was the water attracted toward, away from, or not all with respect to the balloon?

Explanation/Conclusion:
What caused the water to behave as it did?

What did you do to produce the greatest effect on the water?