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Energy Unit
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Transcript

  • 1. What is energy? Where do we get energy?
    Why is energy important?
    Energy
  • 2. Heat
    Electrical
    Light
    Chemical
    Energy comes in many forms:
  • 3. Heat
    A form of energy that makes things warmer.
    Most heat on Earth comes from the sun.
  • 4. Electricity
    A form of energy that can be used to make heat and light, and to power machines
  • 5. Conductor
    An object that lets heat or electricity go through easily.
  • 6. Insulator
    An object that does not let heat or electricity go through easily
  • 7. Circuit
    A path for an electric current
    Often shown in a diagram with a battery, bulb, and wires
  • 8. Open Circuit
    When the path of electricity is broken and the light does not come on
  • 9. Closed Circuit
    When the path of electricity is complete and the light comes on
  • 10. Switch
    A device for turning on or off electricity or an electric current
  • 11. Light
    A form of energy that lets you see things-
    Example: color
  • 12. Absorb
    To take something in
    Example: colors can be absorbed or reflected
  • 13. Energy stored in things
    For example: Batteries and food
    Chemical
  • 14. Food
    Sun
    Wind
    Biomass
    Hydro
    Sources 0f Energy
  • 15. Renewable
    Renewable vs. Non-renewable
    Non-renewable
  • 16. Biomass is organic material made from plants and animals (microorganisms).
    Biomass contains stored energy from the sun.
    Biomass
  • 17. BIOMASS
  • 18. Fossil Fuels
  • 19. Sources:
    http://www.vrml.k12.la.us/cc/vp_gle/3rd/homework/science/un2/science3un2.htm
    http://www.eia.doe.gov/kids/energy.cfm?page=biomass_home-basics-k.cfm