down 2.
A fraction that represents how much of the earth is covered by water.
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down 3.
A type of power that is generated from falling water.
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down 4.
The cooling of water vapor in the atmosphere forms these.
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down 6.
The falling water in a dam powers these, which are used to generate electricity.
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down 7.
A gas form of water that exists on earth. (2 words)
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down 9.
Water exists on earth in all ____ states of matter.
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across 1.
The change from water to water vapor.
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across 5.
A molecule of water is made up of two of these and one oxygen atom.
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across 8.
Water boils at 100 degrees ____.
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across 10.
Water freezes at 32 degrees ____.
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across 11.
A liquid form of water that exists on earth.
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across 12.
A solid form of water that exists on earth.
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across 13.
The most common substance on Earth.
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