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 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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What Is at the Center of the Earth?
What Is at the Center of the Earth? By studying earthquakes, scientists have discovered that the inside of the earth is divided into three main parts. First comes a...
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Why Does the Moon Have More Craters than the Earth?
Why Does the Moon Have More Craters than the Earth? A long time ago, when the Earth and Moon were very young, many large meteorites crashed into their surfaces, and...
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