Procedure: Blow up the balloon and rub it
against your clothes. Feel the tingling of static electricity. Place the balloon up your
hair. What happens? Why?
Challenge: What can you illustrate if you
add these materials to your demonstration?
Pepper, Water running from a faucet, two
balloons, Pepper sprinkled on water and Puffed rice cereal
Why is a hurricane a spiral of cloud bands?
Materials: Large bowl filled tow-thirds
full of water, Stirrer and Oil or Food Coloring
Procedure: Stir the water in a
counterclockwise direction and remove the stirrer. Drop a small amount of oil and food
coloring on top of the water.