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Cool News

Pre-Teens Build Hovercrafts and Catapults

7/17/2018

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On July 17th, Cool Science did a builders’ workshop for pre-teens. The kids had the chance to make balloon hovercrafts and learn about the engineering behind large-scale hovercrafts with their own smaller models. They also made marshmallow catapults, where they discovered the physics behind the ancient military weapon.
 
The hovercrafts were built from a single balloon, one CD, glue, and a PVC pipe. Tiny holes are poked in the tape covering the opening in the middle of the CD, and the PVC pipe attaches the balloon to the top of the CD so air slowly escapes out the bottom. This provides the CD with the ability to “glide” over flat surfaces.
 
The catapults are made from a wooden piece of 2x4, a couple wooden dowels, rubber bands, a paint stick, and of course a paper cup to hold the marshmallow ammunition. Not only were they fun to build, everyone had a blast playing with them. (Check out a video from our YouTube channel below)


​It was an epic showdown as the kids and adults launched marshmallows and piloted their hovercrafts in races!

-posted by Joshua
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  • Home
  • Who We Are
    • History & Mission
    • Staff & Board
  • What We Do
    • Cool Science Festival (Schedule) >
      • Cool Science Carnival Day
      • Sponsors
      • Join the Festival >
        • Present a Carnival Day Activity
        • Host a Special Event
        • Volunteer Yourself
        • Volunteer Your Group
        • Contact the Festival
      • Previous Festivals >
        • 2024 Cool Science Festival
        • 2024 Cool Science Carnival Day
        • 2023 Cool Science Festival
        • 2023 Cool Science Carnival Day
        • 2022 Cool Science Festival
        • 2022 Cool Science Carnival Day
        • 2021 Festival
        • 2021 Carnival Day
        • 2020 Festival
        • 2020 (Virtual) Carnival Day
        • 2019 Festival
        • 2019 Carnival Day
        • 2018 Festival
        • 2018 Carnival Day
      • CS Cool Science Festival YouTube
    • Outreach Programs Overview >
      • Demonstration Shows >
        • Demonstration Shows: CO Science Standards
      • Hands-on Programs >
        • Hands-on Labs: CO Science Standards
      • Science or STEM/STEAM Days & Nights, Science Busking
      • Day of Science
      • Mobile Earth & Space Observatory
    • Big Cool Science Day at Colorado College
    • Kid's Mini Fruitcake Toss
    • Science on Tap
    • Calendar
  • Cool Stuff
    • Try Science At Home
    • Teaching Resources
    • Cool News
    • Cool Science Jokes
  • How To Help
    • Volunteer
    • Donate
    • Corporate & Foundation Donors
  • Contact Us
    • General Contact Info
    • Join Our Mailing List
    • Request A Program