force, Earth, gravity, planet, axis, rotates, spinning, seasons, atmosphere, greenhouse, gasses, nebula, asteroid, comet, meteorite, solar, system, revolution, lunar, satellite
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force |
A force is a push or a pull.
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Earth |
Earth is often referred to as the Goldilocks planet because it's not too hot and not too cold.
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gravity |
Gravity is the force that keeps us from floating off the Earth's surface.
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planet |
A planet is a body that orbits the sun.
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axis |
The Earth tilts on its axis.
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rotates |
The Earth rotates one time every 24 hours.
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spinning |
The word rotates means spinning.
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seasons |
The combination of the Earth's tilt and orbit around the Sun creates the seasons.
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atmosphere |
The atmosphere is a bubble of gasses that surrounds the Earth.
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greenhouse |
A greenhouse traps the heat from the sun to grow plants.
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gasses
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Greenhouse gasses are causing the Earth's temperature to rise.
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nebula |
A nebula is where stars are made.
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asteroid |
An asteroid is made of rock and goes around the sun.
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comet |
A comet has a head and a tail and is made of ice, gas, and dust.
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meteorite |
A piece of rock or metal that has fallen to the earth's surface.
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solar |
The word solar means having to do with the sun.
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system |
System means a group of related parts that move or work together.
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revolution |
Earth takes 365 days to complete its revolution around the sun.
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lunar |
Lunar means having to do with the moon.
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satellite |
A satellite is a body that orbits another body in space.
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* This sentence was added by a Spellzone user.
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