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How to Make Bubble Rings

A bubble ring is a kind of vortex, a collection of whirling fluid or air. Scientists study vortices like bubble rings and smoke rings in a field of physics they call fluid dynamics, because it helps them to improve the design of things like cars and airplanes. Humpback whales create bubble rings when they forage for food, but other water mammals, including dolphins and beluga whales, create sea rings during play. People can make bubble rings too.

Things You'll Need

Swimming pool
Goggles
Nose plug (optional)

Instructions

- 1
  Choose a quiet area of the pool away from splashing swimmers, or water inlets where the water is generally still.
- 2
  Put on your goggles and nose plugs. You will want to see the ring as it spins and floats to the surface. Goggles will help you to see clearly in the water, while a nose plug will prevent water from seeping into your nose when you blow out.
- 3
  Take a deep breath.
- 4
  Make your way to the bottom of the shallow end of a pool by holding to a pool ladder or using a light weight. The rare swimmers who can sink with lungs full of air will not need to use a weight. Try to move without disturbing the water too much.
- 5
  Tilt your head back so that your face is level with the surface of the water. This is where nose plugs come in handy. Keep your hand and arms away from your face to ensure the bubble ring is not disturbed as it spins upward.
- 6
  Form your mouth into a circle and release a quick puff of air, similar to the size and shape of a golf ball, into the water. Watch as your bubble rings spins gently to the top of the pool. Experiment with the rings to help you learn more about vertices and aerodynamics.

Kids Games