chapter 26 energy resources. bellwork answer the following questions in the bellwork section of your...
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Chapter 26Energy Resources
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BELLWORKAnswer the following questions in the bellwork section of your binder.
1. What material is used to heat the marshmallows here?
2. What do you use to cook your food at home?
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Where does all this energy come from?
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Video – Alternative Energy Sources http://
app.discoveryeducation.com/player/view/assetGuid/884A8F82-8135-4FD5-A3CF-5F364EA85C6D
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Define Key terms Fuel Peat Fossil fuel Photovoltaic cell Geothermal energy Biogas Gasohol Energy efficiency Cogeneration Sustainable energy
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Earth’s Geochemical CyclesWater Cycle
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Earth’s Geochemical CyclesThe Carbon Cycle
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Earth’s Geochemical CyclesThe Nitrogen Cycle
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Conventional Energy Resources Transfer of Solar Energy Traditional Sources of Energy
Wood Field Crops Fecal Material Peat
Fossil Fuels Coal Petroleum and Natural Gas Migration
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Alternative Energy Resources Solar Energy - unlimited
Passive Solar Heating Active Solar Heating Solar Cookers Photovoltaic Cells
Energy from Water Geothermal Energy Wind Energy Nuclear Energy Biomass
Biogas Ethanol/Methanol
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Conservation of Energy Resources
Energy efficiency – use fewer resources to provide more usable energy
Cogeneration – the production two usable forms of energy, such as steam and electricity, at the same time from the same process.
Sustainable energy – will ensure current and future energy needs
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Assignment/Classwork
26.1 section assessment pg. 689 #1 – 3
26.2 section assessment pg. 697 #1 – 4
26.3 section assessment pg. 703 #1 – 4
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Chapter 27Human Impact on Earth Resources
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Make a list of some ways humans impact Earth
State if it is positive or negative impact
What determines the level of impact?
Are the impacts permanent or
temporary?
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Population and the Use of Natural Resources
All organisms use resources to sustain life.
The use of resources impacts the environment
Population increases, so does the demand for resources
Resources are limited Population will reach the carrying capacity
and stop growing Human population explosion
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Human Impact on Land Resources We require a huge amount of land resources
Iron, aluminum, copper, sand, gravel, and limestone
Disrupts Earth’s surface Mining Agriculture Monoculture Pesticides Topsoil Forestry –loss of topsoil Urban development
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Human Impact on Air Resources Human activities cause air pollution
Health problems Global impact
Acid prercipitation Ozone depletion Global warming
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Human Impact on Water Resources Conservation is the best way to stretch
supplies of freshwater Human activities pollute the water Decrease water pollution in U.S.
The Safe Drinking Water Act 1974 Clean Water Act 1972
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Video – Discovery Education http://
app.discoveryeducation.com/player/view/assetGuid/A46DBFBD-7378-475A-8810-7637D22DBC32
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Assignment / Classwork Groups of 2:
27.1 section assessment pg. 715 #1-3
27.2 section assessment pg. 723 #1-3
27.3 section assessment pg. 729 #1-4
27.4 section assessment pg. 733 #1-4
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End of Chapter