Decisions made by individuals can affect the global supply of many resources.
Earth materials provide resources for all living things, but these resources are limited and should be conserved.
Connecticut DOE
Last updated:
2012-03-07 08:50:44
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- This standard is part of: 3.4
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Earth materials that occur in nature include rocks, minerals, soils, water and the gases of the atmosphere. Earth materials are natural resources that provide us with things we need to live, including food, clothing, water, air, shelter, land and energy.
1 lesson is aligned with this standard
Connecticut DOE
Last updated:
2012-03-07 08:50:49
Some natural resources are useful to people in their raw form (for example, fresh water, soil or air); other natural resources must be modified to meet human needs (for example, petroleum must be extracted from rocks and refined into gasoline, heating oil or plastics; wood from trees must be processed to make paper).
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Connecticut DOE
Last updated:
2012-03-07 08:50:54
The supply of many natural resources such as fossil fuels, metals, fresh water and fertile soil is limited; once they are used up or contaminated they are difficult or impossible to replace.
Connecticut DOE
Last updated:
2012-03-07 08:50:59
Human actions can affect the survival of plants and animals. The products of the fuels people burn affect the quality of the air. Waste and chemicals from factories, farms, lawns and streets affect the quality of the water and soil.
Connecticut DOE
Last updated:
2012-03-07 08:51:04
Humans can extend the use of some natural resources by reducing the amounts they use (for example, driving less to reduce the amount of gasoline used; turning off faucets when not in use).
Connecticut DOE
Last updated:
2012-03-07 08:51:09