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We get lumber to build houses with and paper to write on from trees in forests We get lumber to build houses with and paper to write on from trees in forests We get gasoline to make our cars go from petroleum in the earth’s crust We get gasoline to make our cars go from petroleum in the earth’s crust We get electrical energy from wind and sun that turns turbines We get electrical energy from wind and sun that turns turbines
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Natural Resources
Mrs. Hartman
Natural Resource• Definition: any natural
material that is used by humans
• Examples: water, petroleum, minerals, forests, animals
How do we use natural resources?
• We get lumber to build houses with and paper to write on from trees in forests
• We get gasoline to make our cars go from petroleum in the earth’s crust
• We get electrical energy from wind and sun that turns turbines
Renewable Resources• Definition: a natural resource
that can be replaced at the same rate at which the resource is consumed.
• Examples: trees, fresh water
• We must be careful not to use them too quickly before more can be made (trees)
Nonrenewable Resources• Definition: a resource that forms
at a rate that is much slower than the rate at which it is consumed. (it cannot be replaced)
• Examples: coal (takes millions of years to make), petroleum, natural gas
Conserving our Resources
• Even if resources are renewable, we should conserve (not waste) them.
• Example: don’t leave the water running hen you brush your teeth, this conserves water.
• We can also conserve resources by taking care of our environment.
• Example: don’t pollute! Polluted lakes and rivers can affect the water that we drink! Polluted water can also harm plants and animals that we eat!
• What are some examples of pollution?
Conserving Energy• The energy we use to heat our
homes, drive our cars and charge our cell phones is nonrenewable!
• We can choose to use that energy wisely so that it is available for longer
• If you don’t limit your use now, you might not have this kind of energy when you are older!
How can you conserve energy?
• Brainstorm some ways you can conserve energy:
• Turn off the lights when you leave a room
• Only run the dishwasher when it is full
• Ride your bike or walk somewhere instead of driving
Recycle• Recycling: process of reusing items• Recycling reduces the amount of
natural resources that we have to get from the earth.
• Example: recycling paper reduces the amount of trees we have to cut down
• Recycling also conserves energy. It takes less energy to recycle a soda can than it does to make a new one
