western
Physics and Astronomy

                                   
Egg Relay
Objective To successfully complete an egg relay race, and to determine the density of the egg.
Purpose To investigate the concept of density; encourage teamwork.
Participants: Teams of Four
Materials 1 large hen's egg, tin can, graduated cylinder, bucket of water, ruler, 100 gram mass - tape, pencil.
Rules
  1. The first person relays an egg a distance of 20 metres to the second person (run, throw, roll, etc.). If the egg is broken it must be replaced by an unbroken one and a 10 second time penalty is assessed.
  2. The second person uses some of the materials to determine the volume of the egg. The egg and the volume are relayed to the third person via an obstacle course. (E.g. 5 tires, sand pit, chairs, hula hoops, stairs).
  3. The third person receives the egg and the measured volume and marks this volume on the egg with a pencil. The egg is then relayed to the fourth person a distance of 10 metres away.
  4. The fourth person determines the mass of the egg by using some of the apparatus in the materials section (list). The mass is written on the egg. The egg is now relayed to the fifth and last person who is 20 metres away. The fifth person determines the density of the egg, writes the density on the egg and stops the clock.
Judging The scoring is 100 points for the best time with a deduction of 2 points per second, and 100 points for best density with a deduction of 2 points per 1/10 gm/cc.
Source Youth Science Foundation Science Olympics Manual.

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