Cut two small notches into four of your craft sticks (A) as shown Cut two small notches into one of your craft sticks (B) as shown Using your hot melt glue gun, glue one of your craft sticks to one of ...

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 ...

Introduction Have you ever driven across a bridge or seen a building that is under construction and noticed the large metal support girders? What about wooden beams in a house that is under ...