The Atmosphere is the ______ of gas around the Earth.
layer
15
When water is solid we call it ice, and when it is a gas we call it...
water vapour.
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What part of the Atmosphere protects us from the sun's radiation?
The ozone layer.
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What is the thickest layer of the Lithosphere?
The mantle.
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What layer of the Lithosphere is a liquid?
The outer core.
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What is the hottest layer of the Lithosphere?
The inner core.
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When did Astronauts first visit the moon?
1969.
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How long does it take the moon to orbit the Earth?
About 28 days.
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How long does it take the Earth to rotate?
24 hours.
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How long does it take the Earth to orbit the sun?
About 365 days.
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We can see the moon because it _______ the light from the sun.
reflects
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There is no weather on the moon because it has no ____________.
atmosphere
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Liquid water __________ from the lakes and oceans, forms clouds, falls as rain, and flows back into the lakes and oceans. This is called the Water Cycle.