Pneumatic Frictionless Hovercraft Platform
An engaging, screen-free learning activity that builds real-world creativity and critical thinking for kids aged 7 to 9.
Materials Needed
- • Unused or recycled compact disc (CD or DVD) (1)
- • Push-pull sport water bottle cap (pop-top valve) (1)
- • High-stretch 12-inch latex balloon (2)
- • Fast-acting craft glue or low-temp hot glue (1 tube)
Pro Tips
- → Ensure the sports cap is sealed with glue completely airtight around the center hole of the CD.
- → Keep the pop-up valve closed while inflating the balloon through the bottom, then snap it open to launch.
- → Give the hovercraft a gentle flick—it will glide across a 20-foot room with zero perceptible deceleration!
Safety First
Hot glue gun should be used with parent guidance. Smooth flat floor (tile/wood) needed.
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Step-by-Step Instructions
Step 1
Check that the push-pull sports drink cap is set to the closed down position, then glue its perimeter firmly over the center spindle hole of an old CD.
Step 2
Allow the adhesive seal to cure fully so that no air can leak from the edges between the plastic cap and the CD disc.
Step 3
Stretch the neck of a 12-inch balloon over the closed cap nozzle, then blow into the underside of the disc to inflate the balloon to full capacity.
Step 4
Place the CD flat on smooth wood or tile flooring, pull the sports nozzle up into the open position, and glide the levitating hovercraft across the room.