Unit 2 Review
Energy
• Energy is the ability to do work!
• Energy canNOT be created or destroyed
• Instead it changes from one form to a...
Nonrenewable energy
sources
• Comes from nonrenewable sources like fossil
fuels (coal, natural gas and oil)
• Burning of f...
Nuclear Energy
• A nonrenewable energy source
• It is nonrenewable because it needs an
element like Uranium which is not e...
Renewable Energy
• Comes from renewable sources like the sun &
wind
• Renewable energy types are:
• Solar (from the sun)
•...
Conserving Energy
• We want to conserve energy
• So that we don’t run out of the nonrenewable
sources
• So that it cuts do...
Upcoming SlideShare
Loading in …5
×

Unitreview

8,573 views

Published on

Published in: Technology, Business
  • Be the first to comment

  • Be the first to like this

Unitreview

  1. 1. Unit 2 Review
  2. 2. Energy • Energy is the ability to do work! • Energy canNOT be created or destroyed • Instead it changes from one form to another • We get energy from nonrenewable and renewable energy sources • Renewable means it can be replaced • Nonrenewable means it canNOT be easily replaced.
  3. 3. Nonrenewable energy sources • Comes from nonrenewable sources like fossil fuels (coal, natural gas and oil) • Burning of fossil fuels for energy produces a lot of air pollution • Air pollution increases the chance of global warming • Air pollution increases the chance of acid rain
  4. 4. Nuclear Energy • A nonrenewable energy source • It is nonrenewable because it needs an element like Uranium which is not easily replaced • Produces less air pollution than fossil fuels, but produces heat pollution in lakes • Nuclear energy occurs when the nucleus of an Uranium is split through the process of fission
  5. 5. Renewable Energy • Comes from renewable sources like the sun & wind • Renewable energy types are: • Solar (from the sun) • Wind • Geothermal (from the heat within the Earth) • Biomass (from plant material and animal waste) • Hydroelectric (from the water)
  6. 6. Conserving Energy • We want to conserve energy • So that we don’t run out of the nonrenewable sources • So that it cuts down on our electric bill • Ways we can conserve: • Turn off lights when we aren’t in a room • Turn off appliances and electronics when we aren’t using them • Change our light bulbs to the compact fluorescent bulbs

×