Watch me build a simple marshmallow catapult using popsicle sticks, rubber bands, and a plastic spoon—perfect for launching mini marshmallows into a mug of hot chocolate! I walk you through each step ...

Explore simple machines and create a catapult using simple materials. Explore simple machines and create a catapult using these simple materials: popsicle sticks, marshmallows, spoon, and rubber bands ...

Fifth-graders built catapults using popsicle sticks and rubber bands and shared their design ideas through an iPad application. Iduma Elementary School librarian Libby Lancaster and campus technology ...