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How to Make a Catapult: Lesson for Kids

Instructor: Deborah Stone

Deborah has taught middle level science and master's and doctorate level education leadership and environmental science.

Let's look at a quick and easy catapult activity. We'll use a small milk carton, a plastic spoon, one bag of mini-marshmallows, and rubber bands to engage in a high-flying, mini-marshmallow launching extravaganza.

What Is a Catapult?

What do you think of when you hear the word catapult? Well, these machines were created to launch objects, often as a weapon in battle. Interestingly, the Greeks were the first to write about these machines, so we get the word catapult from the Greek word katapultos. Long ago in ancient times, defenders of castles built catapults to launch large boulders or rocks and sometimes hot tar to defeat their enemies. Now that times have changed, we can use the same science to launch mini-marshmallows with a milk carton catapult.

Ready to put your science skills to work? Follow the instructions below to construct your very own catapult and launch yourself into some some science fun!

Catapult
Catapult 350

Materials

  • milk carton
  • plastic spoon
  • toothpicks
  • pencils or wooden grill skewers
  • rubber bands
  • mini-marshmallows
  • tape
  • scissors
  • small piece of aluminum foil

Procedures

Begin by gathering all your materials. Then read over the step-by-step instructions.

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