- Glue (I would suggest hot glue, but good old Elmer's School glue will do for a start)
- A spring-style clothespin
- A craft stick (C, colored ours to make it show up better)
- A small scrap of wood.
- A plastic drink bottle cap (we used a milk cap)
Glue the clothespin to one end of the scrap of wood.
Glue the craft stick to the top of the clothespin, about midway down.
Glue the plastic cap, hollow side up, near the end of the craft stick, but not right at the end.
After the glue is dry, place a pompom, or marshmallow into the cap. Push down on the craft stick...
...and let go! This little torsion catapult really works.
Just for fun, we set up a communion glass tower, to knock down. It took us several tries to get a direct hit, as we learned about angles, distance, and stored energy, and just generally had fun.
It's great to be a homeschooler.