Features:
Material. High quality plastic for long life.
Suitable for most beverage bottles (not water bottles)
This is a science experiment toy that is both fun and educational.
You can make in the bottle and watch it spin.
Spinning in the bottle helps to stimulate children's interest in physics.
Product Description:
Kinetics and potential energy.
The swirl plug is easy to use, connect 2 bottles with the plug.
Shake the bottles horizontally 4-5 times and then you will see the spinning in the bottle.
You can also add paint or washing powder to the water.
In the past it was more fun to add some colour and foam to your swirls! !!!
1XDIYConnector Teaching Aid