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6th Grade Unit 4.3 Natural Resources

Horizontales
Energy produced by heat within Earth's crust.
Involves recovering materials that people usually throw away.
A device that produces electricity by a chemical reaction between hydrogen and oxygen.
Rocks that contain enough of a mineral to be mined for a profit.
A natural resource that exists in a fixed amount or that is used up faster than it can be replaced in nature.
A nonrenewable energy resource formed from ancient plants and animals buried in Earth's crust for millions of years.
Produced by releasing energy contained in the nucleus, or center part of atoms.
Verticales
Electricity produced by moving water.
A natural resource that can be replaced in nature at about the same rate it is used.
A specially constructed sandwich of silicon and other materials that converts light energy into electricity.
Any energy source, organism, or substance found in nature that people use.
Means protecting, restoring, and managing natural resources so that they last as long as possible.
Organic matter, such as plant and animal waste, that can be used as fuel.