Place a ball on top of the vacuum cleaner. Turn on the vacuum. Notice that the ball is floating in the air. Replace the ball with a different-sized ball or a plastic bottle. Try floating two styrofoam ...

Hold up a ball of clay about the size of a ping pong ball and ask students if they think it will sink or float in water. Place the clay in the water. Do you think that if I use ½-the amount of clay ...

limits the size of the balls. (That said, some unusual individuals in Lake Akan can achieve a diameter of 30 centimeters [11.8 inches].) But what is the advantage to marimo to float in bright light?

This is a large white floating ball that has LEDs inside and cycles through different colors. Meant to be put into a pool for neat effects, we found it to be much more interesting just used around ...

Do Olympic water polo balls float? Balls used in Olympic water polo float, allowing easier ball movement for players. It is made of waterproof material and contains certain textures to allow players ...