Chapter 26Energy Resources

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?

Where does all this energy come from?

Video – Alternative Energy Sources http://

app.discoveryeducation.com/player/view/assetGuid/884A8F82-8135-4FD5-A3CF-5F364EA85C6D

Define Key terms Fuel Peat Fossil fuel Photovoltaic cell Geothermal energy Biogas Gasohol Energy efficiency Cogeneration Sustainable energy

Earth’s Geochemical CyclesWater Cycle

Earth’s Geochemical CyclesThe Carbon Cycle

Earth’s Geochemical CyclesThe Nitrogen Cycle

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

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

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

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

Chapter 27Human Impact on Earth Resources

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?

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

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

Human Impact on Air Resources Human activities cause air pollution

Health problems Global impact

Acid prercipitation Ozone depletion Global warming

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

Video – Discovery Education http://

app.discoveryeducation.com/player/view/assetGuid/A46DBFBD-7378-475A-8810-7637D22DBC32

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

End of Chapter