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Science Chapter 6

Saving Earth's resources

Mineral a natural nonliving substance that makes up rock
Igneous Rock form from melted rock
Sedimentary Rock form from sediments that are cemented or pressed together
Relative Age the age of one thing compared to another
Metamorphic Rock rocks formed from other rocks by extreme heat and pressure
Rock Cycle shows how rocks change from one form to another
Resource materials from Earth that have useful properties
Humus a nonliving plant or animal matter
Horizon soil form in layers called...
Soil Profile shows horizons
Topsoil another name for the A horizon
Subsoil another name for the B horizon
Pore Spaces the spaces between particles of soil
Porous materials with pore spaces
Permeability describes how fast water passes through a porous material
Fossil evidence of an organism that lived long ago
Amber a hard, smooth material
Mold a hollow form with a certain shape
Cast a fossil that is formed or shaped in a mold
Imprint a mark made by pressing
Fossil Fuel an energy source that formed millions of years ago
Nonrenewable Resource a useful material that cannot be replaced easily
Renewable Resource a useful material that is replaced quickly in nature
Created by: chloej12