Memory Anchor:

• Super Challenge:

  Stretch:

  Challenge:

Key Questions:

1. What are the main energy resources available for use on Earth?
   • The main Energy resources available for use on Earth include: fossil fuels (coal, oil and gas), nuclear fuel, biofuel, wind, hydro-electricity, geothermal, the tides, the Sun and water waves.
2. How is the main energy resource of fossil fuels used on Earth, compared with solar?
   • The main Energy resource of fossil fuels is used on Earth for transport, electricity generation and heating as it can be burned. The main Energy resources of solar is used on Earth for electricity generation and heating as it uses the infrared radiation from the Sun.
3. Why are fossil and nuclear fuels more reliable than wind for generating electricity?
   • Fossil fuels and nuclear fuel are more reliable than wind for electricity generation because wind turbines rely on the strength of the wind whereas fossil and nuclear fuels can provide continuous output for as long as they last.
4. What are the environmental issues that arise from the use of different energy resources?
   • The environmental issues that arise from the use of tidal Energy are that it can have a negative impact on wildlife and it may stop the flow of sewage out to the sea. Wave power can also have an effect on wildlife. Hydroelectric dams can cause flooding and biomass gives off atmospheric pollutants. Wood gives off atmospheric pollutants and can destroy habitats. Fossil fuel burning contributes to global warming.
5. What is a renewable energy resource?
   • A renewable Energy resource is one that is being (or can be) replenished as it is used.
6. Why has there been an increase in use of fossil fuels since the early 1900s and how does this compare with solar energy?
   • There has been an increase in use of fossil fuels since the early 1900s because of the industrial revolution when fossil fuels were used heavily in industry. This use has continued until the present day and is expected to continue to rise until renewable resources yield enough Energy to replace non-renewable resources such as solar Energy. Solar Energy experienced a sharp increase in use in the last decade due to improving technology and awareness of climate change.
7. Which of the following energy resources are renewable and which are non-renewable: fossil fuels, wind, biofuel, solar, nuclear fuel, water waves?
   • The following examples of Energy resources are renewable: wind, biofuel, solar and water waves. The following examples of Energy resources are non-renewable: fossil fuels wand nuclear fuel.
8. What are the main uses of energy resources on Earth?
   • The uses of Energy resources include: transport, electricity generation and heating.
9. What are the energy resources available on earth?
   • The Energy resources available on earth are: coal, natural gas, oil, nuclear fuel, solar Energy, wind power, wave and tidal power, geothermal, biomass and hydropower.
10. What is the environmental impact of using fossil fuels compared with solar?
    • The environmental impact of using fossil fuels is when they are burned they release: - carbon dioxide (global warming) - sulfur dioxide (acid rain) - nitrogen oxides (acid rain) - particulates (global dimming) Solar Energy only releases these gases when solar Cells and solar panels are being manufactured. Other than this they are renewable and release no greenhouse gases.