Challenge: Your TASK is to build a structure that would protect a ping-pong ball from being blown away.
Time: You will have 10 minutes to use your imagination to BUILD and practice with your structure. Then the structure will be tested.
Procedure: Design a structure to protect the ping-pong ball from wind. Your building materials must come from the hat provided. The hat may not be used in its original form or condition. No other materials may be used for the structure.
Position your structure as needed to protect the ping-pong ball from the wind of the fan. The ping-pong ball must be 10 inches in front of the fan.
Test your structure by having the fan blow directly onto it. Time how long it takes for the ping-pong ball to move past a line that is 20 inches away from the fan.
Materials:
- hat*
- Scissors may be used as a tool, but may not be part of the structure
A. 5 points for each second it takes for the ping-pong ball to move 10 inches (maximum of 50 points)
B. Up to 20 points for how creatively or effectively you use the materials
C. Up to 20 points for how well your team works together
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
For the Appraisers only:
Set-up:
- Instead of a ping-pong ball, you can substitute a cotton ball, a feather or other lightweight object.
- Ahead of time, adhere 2 lines of tape to a flat surface, 20 inches apart.
- Position a fan so that the blades are 10 inches behind one taped line.
- Set the ping-pong ball directly in front of the fan on the first taped line.
