1. 11 November 2015 All Classes: Begin reviewing for your Ecology and Environment CUBA, Monday, November 23rd

2. Energy Sources Frayer Models Answer Key Use the following slides to check your Frayer model for the renewable and non-renewable energy sources

3. Non-Renewable Uses Generate electricity Used to make steel Used to make medicine and fertilizer Heat Advantages Coal is plentiful Easy to transport When burned it produces a lot of energy More efficient than other types of fuel Supplies jobs Disadvantages Mining for coal can cause erosion Mining can be dangerous Runoff from coal mines can cause water pollution Creates air pollution Coal

4. Non-Renewable Uses Fuel for vehicles Heating homes Making plastics and petroleum products Advantages Accounts for 1/3 of all the energy in the world Can be easily transported Make may products Disadvantages Hard to find Takes millions of years to form When oil spills it causes water pollution Very deep underground Oil

5. Non-Renewable Uses Heating homes Generate electricity Used for cooking Advantages Can be compressed and stored in tanks/easy to transport Produces a lot of energy with little air pollution Less harmful than coal or oil when burned Disadvantages Hard to find Highly flammable If leaking can cause sickness Can cause land pollution The pipes take up a lot of land space Natural Gas

6. Renewable Uses Create electricity Heat water Light Advantages Does not cause air pollution Energy can be collected and stored Will not run out Can be used in area with a lot of sun Disadvantages Only works in areas that get a lot of sun Takes up a lot of space Expensive to buy panels Only available when sun is shining Solar

7. Renewable Uses Generate electricity Control water flow Part the water cycle Power machines Advantages No air pollution Produced by flowing water/ water cycle Inexpensive/cheapest way to generate electricity Stores energy Disadvantages Only available in areas with water Change the environment by stopping the flow of water Can harm fish Causes floods Hydro- power

8. Renewable Uses Electricity Energy Heat Moves cool air Advantages No pollution Generates electricity Renewable Less expensive than other renewable resources Disadvantages Must have wind Cannot be owned by public Wind farms take up a lot of space Can be harmful to birds Wind

9. Renewable Uses Electricity Transportation Fuel Heating Advantages Can replace gasoline in cars Less air pollution than fossil fuels Can easily switch to without changing the current equipment Non toxic Low Nitrogen/Sulfur Creates Ozone Disadvantages Expensive Not a lot of places to get this fuel Land must grow a lot of soybeans and other biomass Causes air pollution Biomass biodiesel

10. Renewable Uses Energy Provides hot water Heats homes Provides electricity Advantages Natural and easy to access in certain areas No air pollution Unlimited source of energy Don’t need to transport fuel Costs less than coal and natural gas Disadvantages Few places that can be used Very expensive to drill wells The technology is expensive to have in your home Geo- thermal

11. Non-Renewable/Renewable Uses Used to generate electricity Advantages No air pollution Don’t need to drill/look for fuel Very little impact on the environment unless there is an accident Disadvantages Can be dangerous of explode or melt down Uses a lot of water to cool; takes water from the environment Creates radiation/Waste is challenging to store Nuclear/ Uranium