Monday, September 20, 2010

7th Grade

Test scores were lower than I was hoping. After asking the classes they all admitted that they did not do what was asked. They are to be studying 10 minutes a night and they did not. We talked about what needs to happen for next test. Thursday the 30th of September is the last day of the quarter it is also the day we will test over Chapter 5.

Chapter 5 Section 1 Notes. These need to be in your notes book by Wednesday.

Natural Resources
Chapter 5
Section 1


What are Natural Resources
Natural Resources- useful material found in the environment
Water, minerals, vegetation
Raw Materials- natural resources that must be changed to be useful
Ex. Trees into paper

Renewable Resources
Renewable resources- resources that can be replaced
Water
Wind
Solar energy
Geothermal energy

Living Resources
Plants and animals
Ex. Trees
Eggs
Chickens
Cows
Living renewable resources must be managed to ensure they are not used completely used up

Nonrenewable Resources
Nonrenewable Resources- resources that cannot be replaced
Ex. Crude oil
Natural Gas
Most Minerals
Collection must be managed
Substitutes must be developed
Most can be recycled

Fossil Fuels
Fuels created over millions of years from remains of prehistoric living things
Ex. Coal
Petroleum
Natural Gas
They are both renewable and nonrenewable at the same time

A Special Resource: Energy
Energy can be gotten from- wind, sun, fossil fuels,
Energy is needed in order to make other natural resources.
Ex. Trees needs the sun fossil fuel needed to harvest the trees Water energy needed to turn it into paper (falling water can produce energy)

Energy “Have’s” and “Have Not’s”
Energy is needed by everyone, but not evenly distributed around the world
Canada and Norway- lots of water
Saudi Arabia and Mexico- lots of oil
U.S. and Japan use more energy than they produce so they have to buy energy

Meeting Future Needs
Limited fossil fuels
Atomic energy
Tidal energy
Geothermal Energy
Nuclear Energy
Conservation is key to making resources last
Pollution and population also play a role in meeting future needs

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