Why Are There Colors?
Why Are There Colors? Sunlight may appear to be white, but it is actually a mixture of all the colors that can be seen in a rainbow – red, orange, yellow, green,...
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What Causes Waves in the Ocean?
What Causes Waves in the Ocean? Most waves in the ocean are caused by the wind. Somewhere over the ocean, wind ruffles the surface of the water. Ripples form and grow...
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Are Sloth’s Really Lazy?
Are Sloth’s Really Lazy? In the 1600’s, scientists began to use “sloth” as a name for arboreal (tree-dwelling) mammals in the jungles of Central America and South...
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Why Do Tennis Balls Bounce?
Why Do Tennis Balls Bounce? Like many other types of balls, tennis balls have a hollow center filled with air. Like all gases, the air inside a ball moves around easily...
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Where Does the Sun Get Its Energy?
Where does the sun get its energy? The sun is a kind of atomic furnace. Its energy comes from the energy of atoms which are being changed into different forms. The...
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