Balloon+Device

Balloon Popping Device

Problem:
Design a device in which the dropping of a nickel starts the sequence of a clothes pin being knocked off of a piece of cardboard and a balloon popping.

Parameters :
1. The only human intervention that may occur is the releasing of the nickel. 2. You may only use the materials that are provided by the teacher. 3. The nickel must be released by hand at least 1 inch above the device. 4. You may not share materials with other groups. 5. You may only share ideas with your assigned group members. 6. All steps of the Technological Design Process must be documented. 7. Be careful with your materials. You will not be given new ones. 8. All materials must be returned at the end of the activity.

Materials List:

 * · 5 nails ||  ||
 * · 1 balloon || · 12 inches of weed whacker line ||
 * · 3 inches of wire || · 1 thumbtack ||
 * · 1 piece of cardboard || · 1 clothes pin ||
 * · 1 nickel || · 2 pennies ||
 * · 5 inches of tape ||

Grading:
- Participation = 8 points - Device Construction = 10 points - Device Performance = 10 points - Documentation of the Design Process = 10 points

See rubric below for detailed grading criteria.