To Test the Design: 
A sheet of tin foil to make mini cannon balls 
Measuring tape to determine how far their objects traveled.
A Bowl 
paper or plastic cups to make a tower (3 for large solo cups, 7 for small cups)

Students may design their own catapult or create one of the three I will show them. 
(Note these items are not all required. The only required items are the ones your student needs to design their catapult.) 

The Catapults I will show include:
Popsicle sticks
Rubber bands (20 Max in case a few break)
Plastic Disposable Spoon
Bottle Cap
Binder Clip
Hot glue gun (This will be to glue bottle cap lid on catapult) - students may have an adult do this part or choose to build the catapult that requires no glue. 

Student are encouraged to create and design their own mini catapult. They can use any household items such as coke cans, spoons, rubber bands, Popsicle sticks, masking tape, hot glue, magazines, newspaper, soup cans, and bottle caps. 

In a previous class I did have a student who wanted to launch a carcass from his catapult. If you would like to do this you may create your carcass from play-doh and let it dry prior to class. 

Learners will not need to use any apps or websites beyond the standard Outschool tools.

In creating a catapult students will use a hot glue gun (This will be to glue bottle cap lid on catapult) - students may have an adult do this part or choose to build the catapult that requires no glue.