NSES Content Standard F
Science in Personal and Social Perspectives: Types of resources Grades K-4, page 140 Some resources are basic materials, such as air, water, and soil; some
are produced from basic resources, such as food, fuel, and building materials;
and some resources are nonmaterial, such as quiet places, beauty, security,
and safety.
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Benchmark 8C The Designed World: Energy
Sources and Use
Grades K-2, page 193
People burn fuels such as wood, oil, coal, or natural gas, or use electricity
to cook their food and warm their houses.