Follow directions and answer the questions below: 1. Hold rubber bank with both hands. Without stretching it, hold it to the underside of a partner's wrist. 2. Move the rubber band away, then quickly stretch it once and keep it stretched. 3. Hold it to the underside of your partner's wrist. 4. Move the rubber band away and quickly let it return to its normal size. Hold it to the underside of your partner's wrist. Questions: 1. What effect did stretching the rubber band have on the temperature of the rubber band? 2. What may have caused this change to occur?