I started the activity by showing a couple of pumpkin catapult videos from Youtube. We talked about what a catapult is and what it's function is. Next, I let the kids group themselves (I know crazy). I told them they had to be in groups of 2, 3, or 4. I gave each group a bucket of materials: rubber bands, popsicle sticks, masking tape, plastic spoons and of course a pumpkin. I chose the candy variety FYI and probably the only right decision I made the entire day. Ha!
I will admit the kids were learning the entire time. They had a blast and I loved listening to their science discussions. It only got crazy when we tested the catapults. They did a fantastic job and we all survived Halloween on a Monday.