Bell Work: 11/1/10•What does the water you drink, the paper you write on, the gasoline used in cars you ride in, and the air you breathe have in common?– Water, trees used to make paper, Water, trees used to make paper,

crude oil used to make gasoline, and crude oil used to make gasoline, and air are just a few examples of Earth’s air are just a few examples of Earth’s resources.resources.

Natural Resources•A ________ ________ is any

natural material that is used by humans, such as water, petroleum, minerals, forests, and animals.

•Most resources are ________ and made into ________ that make people’s lives more comfortable and convenient.

natural

resource

changedprodu

cts

Renewable Resources•Some natural resources can be

renewed.•A ________ ________ a natural resource

that can be replaced at the same rate at which the resource is consumed. – Examples: fresh water and trees

•A renewable resource can be replaced a used again and again in your life time.

renewable

resource

Nonrenewable Resources•Not all of Earth’s natural

resources are renewable.•A _________ ______ a resource that

forms at a rate that is much slower than the rate at which it is consumed.– Examples: coal, petroleum, and

natural gas

•A nonrenewable resource CANNOT be replaced or used again and again in your life time.

nonrenewable

resource

Challenging Question…•How does human use of renewable and nonrenewable resources today affect future supplies?

•Can you propose an alternative to using nonrenewable resources?

Conserving Natural Resources•Look at the top of page 480!•Read the “Energy Conservation” section on page 480 with your group, and answer this question:–What would you recommend to someone if they were looking for ways to conserve energy?

Reduce, Reuse, Recycle• Another way to conserve natural

resources is to ________.• Recycling is the process of ______

materials from waste or scrap.• Recycling reduces the amount of

_______ ________ that must be obtained from the Earth.

• Recycling also conserves ________.• Materials that can be recycled:

– Newspaper, aluminum cans, most plastic containers (look for the number!), and cardboard boxes

natural

recycle

resources

energy

reusing

Problems with Fossil Fuels• Look at pg. 488!

• When coal is burned without pollution controls, sulfur dioxide is released.

• Sulfur dioxide combines moisture in the air to produce sulfuric acid.

• Acid precipitation is rain, sleet, or snow that has a high concentration of acids, often because of air pollutants.

• Burning petroleum products causes an environmental problem called smog.

• Smog is a photochemical haze that forms when sunlight acts on industrial pollutants and burning fossil fuels.

• How can acid precipitation negatively affect wildlife, plants, buildings, and statues?

• How can coal mining create environmental problems?

• How can producing, transporting, and using petroleum cause environmental problems?