How to Build an Egg Catapult

Be sure the spoon is large enough to hold an egg.
••• Photodisc/Photodisc/Getty Images

A well-designed egg catapult can be a simple, yet effective tool. The egg catapult is a fixture in many physics and basic science classes. Teachers may assign the building of a catapult as an individual or group project. Often, the resulting catapult is scored not only on how well it works but also on the creativity and originality of the designer. Therefore, creating your own design is recommended. But if all else fails, or if you need some inspiration, patterns and instructions are available.

    Start with a 2-foot-long piece of wooden 2-by-4.

    Attach a small metal hinge approximately 6 inches from one end of the wood. Use screws to secure it in place. Face the hinge so it opens toward the opposite end of the wood block.

    Attach the other side of the hinge to a wooden spoon. Screw the hinge to the end of the spoon's handle so the spoon lies on the board face down.

    Nail a large rubber band to the board approximately 6 inches from the end of the board opposite the hinge. Use a couple of U-shaped nails to secure the rubber band.

    Place the loose end of the rubber band around the cup of the spoon. When the spoon is pulled back on the hinge, the rubber band will snap the spoon forward, creating a catapult.

    Things You'll Need

    • Block of wood 2 feet long
    • Metal hinge with screws
    • U-shaped nails
    • Wooden spoon
    • Large rubber band

    Tips

    • Adjust the rubber band as needed. If the band is too loose, knot it around the spoon to tighten it. If it is too tight, use a longer rubber band.

Related Articles

How to Make Egg Launchers
How to Make a Simple Circuit
How to Make an Egg Drop Box
How to Drop an Egg Without Breaking It by Using Straws...
Egg Parachute Design Instructions
How to Make a Pulley for Children
How To Make a Compound Machine for a School Project
Egg Drop Experiments
How to Build a Gyroscope
Science Fair Projects on Levers, Wedges & Pulleys
What Part of the Plant Makes Seeds?
Successful Egg Drop Ideas
How to Blow Up a Balloon With Vinegar and Baking Soda...
How to Make a 3D Model of the Muscular System for a...
How to Build an Easy Catapult for Kids
How to Make an Instrument for a School Project
How to Package to Protect an Egg for a Science Project?
How to Build a Model of the Leaning Tower of Pisa
How Doorknobs Work as a Simple Machine

Dont Go!

We Have More Great Sciencing Articles!