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Unit 1 Chapters 7/8

Rocks and Minerals and Natural Resources

DefinitionTerm
Any characteristic of a material that you can observe without changing the identity of the material. Physical Property
Inorganic, solid material found in nature that always has the same chemical makeup. Mineral
Solid, inorganic material that is usually made of two or more minerals. Rock
Solid material with atoms arranged in a repeating pattern. Crystal
Rare, valuable mineral that can be cut and polished. Gem
Material that contains enough of a useful metal that it can be mined and sold at a profit. Ore
Molten rock material that exists at or above Earth's surface. Lava
Rock that is produced when melted rock from inside Earth cools and hardens. Igneous Rock
Describes igneous rocks that have small or no crystals and form when melted rock cools quickly on Earth's surface. Extrusive
Describes a type of igneous rock that generally contains large crystals and forms when magma cools slowly beneath Earth's surface. Intrusive
A type of rock made from pieces of other rocks, dissolved minerals, or plant and animal matter that collect to form rock layers. Sedimentary Rock
Force applied over a given area. Pressure
New rock that forms when existing rock is heated or squeezed. Metamorphic Rock
Diagram that shows the slow, continuous process of rocks changing from one type to another. Rock Cycle
A material that provides useful energy. Fuel
Nonrenewable energy resource, such as oil and coal, formed over millions of years from the remains of dead plants and other organisms. Fossil Fuel
Sedimentary rock formed from decayed plant material. Coal
Liquid fossil fuel formed from marine organisms that is burned to obtain energy and used in the manufacture of plastics. Oil
Fossil fuel formed from marine organisms that is often found in tilted or folded rock layers and is used for heating and cooking. Natural Gas
Amount of a fossil fuel that can be extracted from Earth at a profit using current technology. Reserve
Alternative energy source that is based on atomic fission. Nuclear Energy
Created by: rwaters