A pile of elastic bands might not look like much, but each one can be a store of energy.
Try the questions in this worksheet to test your knowledge of elastic bands and energy.
If you use an elastic band catapult to propel an object what difference does it make how much you stretch the band?
What happens if you try to stretch more than one elastic band at the same time?
You are testing different elastic bands to see which will propel an object furthest. Which THREE of these things do you need to do to make sure it is a fair test?