CD Hovercraft Friction Science Experiment
In this fun friction science experiment we are going to build a CD Hovercraft that will glide and buzz around by using airflow to reduce friction.
- A CD or DVD
- Duct Tape
- A birthday party balloon
- A pop-top cap from a bottle of dish soap
- Center the pop-top cap over the hole in the middle of the CD.
- Use the duct tape to secure the cap in place. Make sure your seal all of the gaps airtight to prevent any air from escaping.
- Push down on the pop-top cap to make sure it is closed.
- Inflate the balloon. Twist the end to keep the air from coming out but do not tie it closed.
- Stretch the mouth of the balloon over the pop-top cap. Be sure not to let too much air escape from the balloon.
- Adjust the balloon so it stands up straight and centered over the CD.
- Place you CD Hovercraft on a smooth surface and open the pop-top by pulling it up.
- Give your CD Hovercraft a gentle push and observe what happens.
How it Works:
The airflow from the deflating balloon creates a cushion of air under the CD Hovercraft. This reduces friction and allows the CD Hovercraft to glide around until the balloon deflates.
Make This A Science Project:
Test different sizes of balloons. Can you add things like fins to the CD Hovercraft to change its behavior in any significant way? Try the CD Hovercraft on different types of surfaces. Test to see if the CD Hovercraft works on water.