When it's raining outside and you have nothing to do take a boring paper clip and make it jump!
Step 1: Materials
All you need is a paper clip.
Step 2: Unfold
Unfold your paper clip so that one end overlaps the other.
Step 3: Pull
Pull until l the two ends are about one inch from each other.
Step 4: Push
Now you have to push them back together until the two ends lock.
Step 5: Drop
Now drop the paperclip from above one foot. It should jump back up very high.