What Causes the Mists above Lakes and Ponds?
What Causes the Mists above Lakes and Ponds? The mist that may be seen above ponds and lakes on cold winter mornings and clear summer nights is sometimes called steam...
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How Do Frisbees Fly?
How Do Frisbees Fly? When a Frisbee soars through the air, its spinning motion is what keeps it flying. Operating on the principle of an airfoil — any flying object...
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Why Do Dogs Pant?
Why Do Dogs Pant? Dogs pant to cool off when they are feeling hot. When our body temperature gets too high, we sweat. Evaporation of sweat from the skin takes up a lot...
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What Is Hail?
Hail is made up of small lumps of ice that sometimes fall during thunderstorms. Hail starts in thunderclouds as rain. As the raindrops form, strong air currents carry...
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Why Do You Sneeze?
Usually you sneeze to get rid of an irritation in the air passage of your nose. Various things can cause a sneeze. You may have dust up your nose, or you may have...
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