Use scissors to cut a 30 x 30 inch square out of a lightweight plastic garbage bag. Place a strip of clear tape on each corner of the square. Use a hole punch to punch a hole one inch from the edge, through the tape on each corner. The tape helps to reinforce the holes. Tie the end of a 20-inch length of light string through each of the holes in the plastic square. This will be your parachute.
Attach a piece of clear tape to the top of a sandwich bag by the open end. Punch a hole one inch from the edge of the bag through the tape. Gather the loose ends of string that are attached to the parachute and tie them through the hole in the sandwich bag to attach your egg carrier.
Fill the sandwich bag with cotton for cushioning and place an egg in the middle of the padding. You are now ready to try the egg drop experiment. Start by dropping it from five feet off the ground, then 10 feet and continue to increase the height from which you drop it. Experiment with different kinds of padding and parachute sizes and record your results in a chart.