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Science >> Earth Science >> Environment

The Environment

Renewable Energy

What is renewable energy?

Renewable energy uses energy sources that are not "used up". For example, solar power from the sun is renewable as we won't "use up" all the sunlight from the sun. Examples of non-renewable energy sources include fossil fuels like coal and oil. Once we use or burn these resources, they are gone forever.

Why is renewable energy important?

Much of the world relies on non-renewable energy to heat their homes, power their electronic devices, and power their cars. Once these energy sources are used up, they will be gone forever. Developing technologies that can efficiently use renewable energy sources is critical to our future.

The Environment

Many renewable energy sources are also better for the environment than burning fossil fuels. They produce less pollution which will help protect the environment and provide us with cleaner air and water.

Renewable energy use in the United States


Major Types of Renewable Energy

Wind Power - Large wind turbines generate electricity from the power of the wind.

Solar Energy - The rays from the sun can help to heat a building or a pool. They can also be turned into electricity using solar cells.

Hydropower - Water from a dam or a river can be used to spin turbines and generate electricity.

Wave and Tidal Power - This new technology is working on ways to harness the vast power of the ocean's waves and tides.

Geothermal Energy - Heat from inside the Earth can be used to heat homes and buildings with heat pumps. Steam from inside the Earth can also be used to generate electricity.

Biomass Energy - Plants gather energy from the sun by photosynthesis. We can harness this energy by burning plants such as trees as well as creating fuel from plants such as ethanol and biodiesel. Even gas from trash and manure can be used to create energy.

Fun Facts About Renewable Energy
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Renewable Energy Crossword Puzzle
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Environmental Issues
Land Pollution
Air Pollution
Water Pollution
Ozone Layer
Recycling
Global Warming
Renewable Energy Sources
Renewable Energy
Biomass Energy
Geothermal Energy
Hydropower
Solar Power
Wave and Tidal Energy
Wind Power
Science >> Earth Science >> Environment





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