MATERIALS: Soap bubble solution, two circular wire rims.

PROCEDURE:

Dip two wire rims in the soap solution and blow through the wire frame. Catch the bubble on wire frame. Now stretch the bubble by pulling the frames apart until it separates into two bubbles.(fission). Press the bubbles back together until they form one large bubble again.(fusion)

QUESTIONS:

1. What is missing from this model of fission and fusion?

2. What examples can you give on nuclear energy sources in nature?

EXPLANATION:

In the case of fission, a very heavy nucleas splits and forms two medium weight nucleas. When two lightweight nuclei combine to form heavier , more stable nuclei it is called fusion.The elements that are missing in this model are the neutrons, protrons and the energy released.