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Houghton Mifflin 5th grade Science Chapter 8
Terms in this set (13)
Protecting and preserving natural resources and the environment
Coal, oil, natural gas, and other fuels that are ancient remains of plants and animals.
Materials or substances such as minerals, forests, water, and fertile land that occur in nature and can be used for economic gain
A natural resource that is not replaced in a useful time frame.
the separation, collection, processing, marketing, and reuse of unwanted material
Soil that remains above its parent rock
The loose, weathered material on Earth's surface in which plants can grow.
a vertical section through a soil showing its succession of horizons and the underlying parent material
The layer of soil beneath the topsoil that contains mostly clay and other minerals.
Mixture of humus, clay, and other minerals that forms the crumbly, topmost layer of soil.
Soil that has been moved away from its parent material by water, wind, or a glacier.
The disposal of refuse and other waste material by burying it and covering it over with soil
What are the three r's of conservation?
reduce, reuse, recycle
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