book+1+5.3

III. Energy Conversions and Fossil Fuels

A. Energy is stored in fuels B. Fuels - material that stores chemical potential energy C. Fossil fuels - fuels that used today formed 100s of millions of years ago 1. coal, petroleum, natural gas 2. contain energy that came from the sun D. sun's energy reaches Earth's plants that convert light energy to chemical energy thru photosynthesis. Plants use some, store rest. 1. Plants and animals died - chemical potential energy stored in them - found in dead E. Fossil fuels can be burned to release the potential chemical energy stored millions of years ago.

5.3 quiz 1.The sun transforms nuclear energy to electromagnetic energy. 2. Electrometric energy from the sun 3. Fossil fuel, petroleum or natural gas 4. The stored chemical energy in coal is transformed to thermal energy when the coal is burned to produced steam. 5. The steam has thermal energy. The turbines have mechanical energy 6. mechanical energy is transformed to electrical energy as turbines turn electric generators 7. Ex electrical energy can be transformed into thermal energy in your toaster

Study Guide 5.chemical energy into thermal energy 6.petroleum 7.the sun 8.thermal energy 11.produce electricity 20. false chemical 21. false millions 26.steam