Natural Resources
Published on Nov 18, 2015
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Natural Resources
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1. Energy resources are natural resources that humans use to produce energy and all of the energy released from these resources ultimately comes from the sun.
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2. A natural resource is any natural substance, organism or energy form that living things use.
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3. A renewable resource is a natural resource that can be used and replaced over a relative short time.
For example trees, animals, natural fiber for clothing are renewable resources.
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Energy from flowing water, wind and the sun are also renewable resources
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4. A nonrenewable resource is a natural resource that cannot be replaced or that can be replaced only over thousands or millions of years.
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For example, all natural gas exist in limited quantities.
When these resources become scarce, humans will have to find other resources to replace them.
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- Real life connection.
The difference between non-renewable and renewable resources is like the difference between ordinary batteries and rechargeable ones. If a flashlight with ordinary batteries goes dead, the batteries need to be replaced. But if the flashlight has rechargeable batteries, the batteries can be placed in a charger. The charger transfers energy from an outlet into the batteries. Once recharged, the batteries can be put back into the flashlight. Rechargeable batteries can be used again and again
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5. The amount of non-renewable resources on earth is fixed with respect to their availability for human use.
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Earth’s population is growing fast which increases the demand for resources.
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To conserve natural resources, we should try to use them only when necessary. For example, leaving the faucet running while brushing your teeth wastes clean water. Turning the faucet on only to rinse your brush saves a lot of water that you or others need for other uses.
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8. Recycling is the process by which used or discarded materials are treated for reuse.
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Recycling allows manufacturers to reuse natural resources when making new products. This in turn produces the amount of natural resources that must be obtained from the earth. For example, recycling aluminum cans reduces the amount of aluminum that must be mined from the earth’s crust to make new.
Photo by Howdy, I'm H. Michael Karshis
Check for understanding
Renewable resources ____.
a. can be replenished over months, years, or decades
b. are all living resources
c. have finite supplies that will one day be used up
d. include iron, natural gas, and copper
a. can be replenished over months, years, or decades
Analysis. Cause and Effect.
Think about one consequence either positive or negative if one day we run out of:
Water, petroleum, wind, solar energy, minerals. trees, coal, natural gas, oxygen, animals
Stand up, hand up, pair up.
Discuss the reasons why we are running out of natural resources and offer one solution to prevent it.
Ticket out the door.
Explain the difference between conserving a resource and recycling it.
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