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Energy from Earth's Natural Systems

Across
An area with many connected groups of wind turnbines
The regular rise and fall of the ocean's surface due to the gravity of the sun and moon
The direction water in a river or stream flows, away from its source.
Visual appearance
A tower with moving blades that converts wind movement into energy
Energy that comes from moving water
Heat from inside the earth.
In the opposite direction of the way that water is flowing in a stream or river
A jet of hot liquid or steam that shoots out of a crack in Earth's crust.
Down
A series of pools that allow fish to move upstream over a dam.
Plant material that is burned for feed.
A barrier built across a river to control the flow of water
A natural flow of groundwater heated inside the earth
Partly decomposed plant material found in wetlands
A fuel made from corn or sugar cane.