CD Floater
AGES: 3+ ACTIVITY TIME: 10 Mins + PREP. TIME: 5 mins
An excellent way to demonstrate how air can be used to reduce friction.
Things You Need
- CD
- hose/pipe valve
- water bottle
- a balloon
- twistie tie
- a box cutter or scissors
- a glue gun
Preparation
Gather all the materials and have them ready near a power outlet as you’ll need it for the glue gun. It’s a good idea to plug in the glue gun 5-10 minutes in advance as it takes some time to warm up.
Let’s Do It
For young ones, I recommend having an adult handle steps 1-3.
- Cut the Water Bottle:
Cut the top off the water bottle approximately 3 cm down from the cap. - Attach Bottle to CD:
Use the glue gun to securely attach the bottle part to the center of a CD, ensuring it is airtight. - Attach Hose Valve:
Insert the hose valve into the top of the bottle part, securing it with a generous amount of glue to ensure an airtight seal. - Attach Balloon:
Once the glue is set, place a balloon on the exposed end of the valve and secure it with a twist tie. - Decorate:
Add decorations using permanent markers or any other preferred materials. - Inflate:
Blow it up, ensuring the valve is open during inflation and closed when you have sufficient air. - Ready to Launch:
Place it on a flat surface and open the valve to release air. The valve allows for easy fine-tuning to optimize its floating power.
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