1. Energy Resources “Going Green”
8th Grade
Chapter 9 HRW

2. Any natural substance, organism, or energy form that living things use
Natural Resources
Any natural substance, organism, or energy form that living things use

3. Renewable resource
Natural resources
Used and replaced in short time
Ex: trees, water

4. Nonrenewable resources
Cannot be replaced in a short time
May take over 1,000 years
Example: oil and natural gas
(Fossil Fuels)

5. Fossil Fuels Petroleum(oil) Natural gas-methane
Comes from the remains of microscopic sea life
Petroleum(oil)
Natural gas-methane
Coal-burn coal to produce electricity
Advantage: Plentiful at this time
Comes from decayed swamp plants
Disadvantage: acid rain, smog, oil spills,
environmental issues

6. Name of Alternative Resource
Explanation of what it is. Where does it come from and
Is it renewable or nonrenewable
List the advantages and disadvantages

7. Nuclear Energy nonrenewable resource
Fission-radioactive atoms split and release energy-high energy, but very dangerous
Fusion-joining nuclei of atom to form larger atoms. Little waste, but requires high temperatures

8. Solar Energy Comes from the sun Can be changed to electricity renewable resource
Advantage
Reliable and quiet
Disadvantage
Solar Cells expensive

9. Wind Energy Uneven heating of the air by the sun produces wind
Wind Energy Uneven heating of the air by the sun produces wind. Windmills are used to pump water or produce electricity. Renewable resource
Disadvantage
Wind is not always strong and steady
No Wind, no Energy
Advantage
Wind farms/windmills
Strong and Steady
No pollution

10. Hydroelectric Energy Potential and kinetic energy of water renewable resource
Disadvantage
No available everywhere
Construction causes destruction of wildlife
Decrease water quality
Create erosion problems
Advantage
Inexpensive and
Little pollution

11. Biomass Plants absorb energy from the sun -organic material contains stored energy renewable resource Recycles waste
Advantage
Waste is reduced
Disadvantage
Releases Carbon dioxide
Must replant

12. Gasohol Plant material changed to liquid fuel Corn Renewable resource
Advantage
Mixed with gasoline, reduces the amount of gas used
Disadvantage
Take a lot to make a little
Requires land for growing food

13. Geothermal energy Renewable resource energy produced by heat within earth’s crust
Disadvantage
Construction of plants
Location of plant
Advantage
Can be used as a direct source of energy
No fuel
No pollution