60-90 Minutes | 1st – 8th Graders

catapultsThe catapults activity introduces the engineering design process whilst also giving a basic introduction to trajectory physics. Students learn about different types of catapults and their historical and modern uses. Students then design and build their own catapults using popsicle sticks, tape, rubber bands, and spoons. Launching at targets allows the students to learn the difference between accuracy and precision. Afterwards, the class reviews the results to see which catapult design worked the best!

Catapults Prezi


  • 4.3-5-ETS1-3. Plan and carry out tests of one or more design features of a given model or prototype in which variables are controlled and failure points are considered to identify which features need to be improved. Apply the results of tests to redesign a model or prototype

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Upcoming Events

  1. Engineering Explorations – Engineer’s Week 2019

    February 19 @ 8:30 am - February 22 @ 3:00 pm
  2. Engineering for Everyone Expo

    February 22 @ 10:00 am - 12:00 pm
  3. BPS Science and Engineering Fair (Set-Up Day)

    March 1 @ 11:00 am - 4:30 pm
  4. BPS Science and Engineering Fair

    March 2 @ 8:00 am - 3:00 pm
  5. STEM Field Trip – Joyce Kilmer

    March 15 @ 9:35 am - 1:10 pm