lab #1

problem- will the weight of two different balls effect the speed when it rolls down a PVC pipe

materials- ping pong ball, marble, masking tape, PVC pipe, protractor

hypothesis- i think that the ping pong ball with go faster because it is lighter that the marble and the marble takes longer to get going

procedure-
1. gather materials
2. tape the PVC pipe to the protractor
3. get the ping pong ball and set it at the top of the PVC pipe
4. now get the timer so you will be able to see how fast it comes out of the PVC pipe
5. count down from 3 and then right before you let the ping pong ball go say Go
6. when you say go time the ball and see how long it takes to get out
7. do that 3 times for each group member
8. repeat steps 3-7 with the marble
9. record observations
10. graph
11. clean up

experiment- which ball will roll down the PVC pipe faster