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Ch 7 RenewaResources
Earth's Resources Vocab
| Question | Answer |
|---|---|
| biomass | plant material and other organic matter used as an energy source |
| wind energy | energy produced by the movement of air over Earth;s surface |
| Geothermal Energy | energy produced by heat within Earth |
| Solar Energy | energy received by Earth from the sun in the form of radiation |
| Hydroelectric Energy | electrical energy produced by the flow of water |
| Difference between an Active System and a Passive System | a heating system that uses solar collectors with moving parts - a passive does not use moving parts |
| Where do they obtain 85% of its home heating from geothermal energy? | Iceland |
| the water for geothermal power plants heat up by | magma heated rock |
| What is recycling? | process of using materials more than once |
| What is a disadvantage of a solar collector? | cloudy days do not produce enough sunlight for warming |
| How long will coal resources last if current trends continue? | 200 years |
| What is a Photovoltaic Cell? | a solar cell used to convert solar energy directly into electricity |
| Explain how a turbine generates energy | use your wind turbine as a foundation to explain |
| Be able to explain how the engineering process works | Identify the Challenge, Brainstorm, Design a Solution, Test Ideas, Evaluate, Build It! |
| Be able to explain the shift to renewable energy and why people are shifting | People are shifting to renewable energy because 1) Nonrenewables will run out 2) it is "clean" meaning it does not release substances such as sulfur dioxide into the air 3) it does not release CO2 into the air which holds heat in our atmosphere |