Catapult With Popsicle Sticks

In this lesson, children will build and test their own catapults.

Learning Goals:

This lesson will help children meet the following educational standards:

  • Demonstrate curiosity about the world and begin to use the practices of science and engineering to answer questions and solve problems
  • Explore concepts and information about the physical, earth and life sciences
  • Understand important connections and concepts in science and engineering

Learning Targets:

After this lesson, children should be more proficient at:

  • Developing beginning skills in the use of science and engineering practices such as observing, asking questions, solving problems, and drawing conclusions
  • Identifying, describing and comparing the physical properties of objects
  • Exploring the effect of force on objects in and outside of the early childhood environment
  • Understanding rules to follow when investigating and exploring
  • Using nonstandard and standard scientific tools for investigation

Step 1: Gather materials.

  • The book, Fraydo the Dragon: A Very Big Problem!, by Courtney Spain Aragon
  • Paper
  • Plastic spoons
  • Popsicle sticks
  • Puff balls or pom-poms
  • Rubber bands

Step 2: Introduce activity.

  1. Read the book: Fraydo the Dragon: A Very Big Problem!
  2. Watch the video tutorial, "How To Make Popsicle-Stick Catapults" with the children.
  3. Demonstrate how to build a catapult:
    • Make a stack of 6 popsicle sticks and put a rubber band on each end to hold the stack together.
    • Stack 2 more popsicle sticks, put a rubber band on one end and open the other end to form a V.
    • Slide the larger stack of popsicle sticks in between the 2 sticks so that they stay open. (See top photo below for reference.)
    • Now slide the spoon under the rubber bands on the top popsicle stick. (See bottom photo below for reference.)
    • Say: "Now it's time to make your own catapults!

Step 3: Engage children in lesson activities.

  1. Now lead the children through the steps again as they build their own catapults.
  2. Once the catapults have been built, say: "Put your puff balls or pom-poms on your spoons and see if you can launch them. Push your spoons down towards the ground and let go!"
  3. Now ask: "What can you change to make your puff balls or pom-poms fly farther?
  4. Extend the lesson by measuring the distance that the children's puffs or pom-poms have traveled.

Step 4: Engineering vocabulary

  • Catapult: A type of simple machine called a lever
  • Create: To make something
  • Improve: To make changes to create a better design
  • Test: To try out an idea to see if it works or not
Suggested Books
  • 3, 2, 1, Go!  by Emily Arnold McCully
  • Caleb the Catapult vs. The Train Monster  by Caleb Spencer
  • Cat Catapults  by Izzy B.
Music and Movement

Outdoor Connections

Web Resources

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