# Defying Gravity

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#### Updated on Feb 08, 2012

Grade Level: 6th - 12th; Type: Physical Science, Engineering

### Objective:

The goal of this project is to create a protective device to keep a raw egg from cracking during free fall.

### Research Questions:

• What happens when you increase the free fall distance?
• How does "padding" an object work?

### Materials:

• Carton of eggs
• Yard stick/Measuring Tape
• Various Supplies for creating a protective device.

### Experimental Procedure

1. Brainstorm on various ways to protect the egg from cracking.
• What kinds of materials are used in safety devices for sports and automobiles? Think of the materials that we use to protect ourselves in various situations.
• Photograph and document your design.
2. Two foot free fall: Using a yard stick or measuring tape measure a distance of 2 feet from the floor. This is the first height at which you will test your device. Calculate the acceleration at 2 ft.
3. The egg drop: Cover the floor with plastic for easy egg clean up. Using a yardstick hold your device, with egg, so that the bottom is 2 feet from the floor. Drop the egg by releasing your grip. Do not throw the egg down.