What Causes the Change of Seasons?
What Causes the Change of Seasons? The movement of the Earth around the sun causes the seasons. The Earth is tipped slightly as it moves along its path around the sun....
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How Did the Solar System Begin?
How Did the Solar System Begin? To this day, the birth of our solar system remains a mystery. Scientists believe that some 4.6 billion years ago, a vast cloud of dust...
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What Causes Ocean Tides?
What Causes Ocean Tides? Tides are the rise and fall of the levels of the ocean. They are caused by the gravitational pull of the Sun and Moon as well as the rotation...
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Why Do Roosters Crow?
Roosters crow in order to attract hens (female chickens), and to tell other roosters: “This is my territory, stay out!” Sometimes roosters seem to crow just for the joy...
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Why Is It Hot at the Equator?
Why Is It Hot at the Equator? The equator is an imaginary circle around the Earth, dividing the Earth’s surface into the Northern and Southern Hemispheres. People who...
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