Three different sized rubber bands, each with its own speed of stretching when weight is added. Creating a makeshift basket, the group was able to attach a rubber band to a ring stand. After adding two washers, the team calculated how much the washers would affect the rate at which each rubber band would stretch. More washers were added until the maximum amount of weights in the basket was reached. The shorter rubber band required more weight to stretch it, however the larger rubber band would not require as much force to change the rate at which the rubber band stretched. Each rubber band had its own stretching speed. The stretch of the rubber band when weight is added is affected by the length of the rubber band. Materials and methods: Independent variable - Length of the rubber band. Dependent Variable - Rate of elongation when weight is added. Control variables - Same person measures rate of change - Avoids miscalculations by other people. • Same washer size - Different size washers may alter weight and stretch speed. • Fixed ring holder - Having the ring holder taped to the table prevents the ring from moving and avoiding miscalculations.• Unused rubber bands: If a stretched rubber band is used, the speed of stretching may be altered.Assumptions:• All materials are quality controlled.• Different size rubber bands are of the same material.• Rubber bands are not stretched and not used. Materials:1. A 7.62 cm x 0.3175 cm2 elastic. An 8.89 cm x 0.3175 cm3 elastic. A 17.78cm x 0.3175cm4 elastic. Four paper clips5. Dixie Cup6. Ring holder7. Metro Stick8. 20 washers of the same size9. Adhesive tape procedure:1. Use a hole punch to make two holes in the cup. One on each side. Clip three paper clips together, passing the two end paper clips through the holes. This creates an accurate weight basket.2. Attach a paper clip to the ring holder, secure with a 5cm piece of tape to reinforce the paper clip. Place a 7.62cm x 0.31745cm rubber band on the paperclip.3. Attach the basket to the elastic on the ring holder.4. Position the ring stand so that it hangs over the table. Attach the measurer to the table and make sure the measurer is flush with the rubber band,5. Add two washers and wait until you no longer feel any movement of the basket. Then record the date and units. Repeat the steps until all washers are used (ten data points total).6. Repeat with the next two sizes of elastic. It was hypothesized that the elongation of the rubber band when weight is added is influenced by the original length of the rubber band.