Our Planet
Our Planet
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Why does a day have 24 hours?
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What is the equator?
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What is evolution?
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What is global warming?
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Where does all the water go at low tide?
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Why do I have a shadow?
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Why is the sky blue?
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Why does the sky change color at sunset?
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Why does the sun rise in the east and set in the west?
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What is color made of?
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Why don't we fall off the Earth?
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What are seasons?
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Why is there a different time in Australia?
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Why is the Earth round?
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Why does the Earth rotate?
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Is today already tomorrow?
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Will the Earth ever stop spinning?
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Why is it so cold in winter?
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What is holding up the Earth?
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What is Density?
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How big is the Earth?
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What is air?
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Which countries does the equator run through?
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What is gravity?
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How many people are on Earth?
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What are greenhouse gases?
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What is the ozone layer?
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How was the Earth made?
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Why is the sky black at night?
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Why don't we rotate but the Earth does?
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How does a compass know which way north is?
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Why does my shadow move?
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What is the prime meridian?
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What is a solstice?
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How fast does sound travel?
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How fast does light travel?
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What is an equinox?
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What is inside the Earth?
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Why are days shorter in winter?
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Why is it so hot in the summer?
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What is a hemisphere?
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What are the North and South Poles?
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What is the atmosphere?
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What is the horizon?
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Why do we need trees?
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What are north, south, east, and west?
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Do we all see the same colors?
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How much does the Earth weigh?