This week we have been learning about elastic potential energy and angles (degrees). One of the experiments was a slingshot rocket and from this we learnt how to make one and what design is better. I think popsicle sticks in a v shaped and a cut rubber band work together well because you have more elastic potential energy.
Another experiment was flipping frogs. In this all of the energy was in the elastic band. I think most of the experiment relied on the card because if the card bent the frog didn't work.
We also had another experiment and that is called angle launcher how it works you pick a angle.