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Day and Night
Earth's rotation on its axis causes day and night. As Earth spins, sunlight only falls on one-half of the planet. This means it is day...
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الخميس، 10 ديسمبر 2020
Seasons on Earth
: Earth's revolution around the Sun creates the seasons. They are different in the Northern and Southern Hemispheres. Why do we have Sea...
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Earth and Its Moon
Earth is unique amongst the planets in our solar system. It is the only one with all the conditions needed for life to exist. Earth is the o...
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The Sun
The Sun is only an average-sized star, but the energy it produces allows life to exist on Earth. Solar Energy: The Sun is a yellow dwarf s...
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