S6E6. Students will describe various sources of energy and with their uses and conservation.
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The Sun Energy and Pigments The sun is not only the physical center of our solar system, it is the center of processes that helped form and continue to shape the physical and biological characteristics of the Earth.
Radiant Energy All objects of the earth produce this type of energy in the form of light or heat. Heat and light are identical forms except for the fact that their wavelengths vary. The Sun is a major source of energy considering that it is so hot on the sun (in excess of 10,000 degrees) it gives off a lot of energy. Hence why it is so vital to human survival.
Facts About Solar Energy Different forms of solar thermal technology could be used from small scale to large-scale applications. A small system could be installed, usually on top of a roof, to heat water for each household. A moderate size system could use hot water and steam to warm water which could be used for public facilities, such as, schools and hospitals.
Howstuffworks: How Solar Cells Work In this article, we will examine solar cells to learn how they convert the sun's energy directly into electricity. In the process, you will learn why we are getting closer to using the sun's energy on a daily basis, and why we still have more research to do before the process becomes cost effective.
Wind Power Wind power is the conversion of wind energy into more useful forms, usually electricity using wind turbines.
Wind Energy Today, wind energy is mainly used to generate electricity. Wind is called a renewable energy source because the wind will blow as long as the sun shines.
Water (Hydropower) Energy Of the renewable energy sources that generate electricity, hydropower is the most often used. It accounted for 7 percent of total U.S. electricity generation and 75 percent of generation from renewables in 2004.
Water as an Energy Source Hydropower makes use of the kinetic energy water gains when it drops in elevation. Typically, water dammed in a lake or reservoir is released through turbines and generators to produce electricity. Hydropower has been a staple of electricity since the beginnings of the electric age.
Fossil Fuels Fossil fuels, coal, oil and natural gas, are a non-renewable source of energy. Formed from plants and animals that lived up to 300 million years ago, fossil fuels are found in deposits beneath the earth.
Fossil Fuels Fossil Fuels are energy-rich substances that have formed from long-buried plants and microorganisms. Fossil fuels, which include petroleum, coal, and natural gas, provide most of the energy that powers modern industrial society.
Quia - Renewable vs. Nonrenewable Energy Sources Test your knowledge of renewable and nonrenewable energy sources.
A Consumers Guide to Energy Efficiency and Renewable Energy These fact sheets, from the U.S. Department of Energy, provide more information about energy efficiency and renewable energy for your home or small business.
Renewable Resource Data Center The RReDC provides information on several types of renewable energy resources in the United States, in the form of publications, data, and maps. An extensive dictionary of renewable energy related terms is also provided. The News section announces new products on the RReDC.
Renewable Energy Renewable energy sources can be replenished in a short period of time. The five renewable sources used most often include hydropower (water), solar, wind, geothermal, and biomass.
Nonrenewable Energy Nonrenewable energy sources come out of the ground as liquids, gases and solids.
Users Of Energy Find out how we use energy for our homes, vehicles, and businesses.
Energy - Where Does it Come From? Energy use is projected to more than double over the next quarter century. Much of this expected increase will occur in developing Asian economies. As the demand for more energy grows, will the there be enough fuel to go around?
International Energy Outlook 2006 The International Energy Outlook 2006 (IEO2006) presents an assessment by the Energy Information Administration (EIA) of the outlook for international energy markets through 2030.
IEA Energy Information Centre Continued economic growth is expected to result in increased use of fossil fuels with likely increases in the emissions of local and global pollutants. In the next twenty years, fossil fuels will account for almost all new electric power generating capacity.
Energy conservation Energy conservation is the practice of decreasing the quantity of energy used while achieving a similar outcome of end use.Energy Conservation Devices and Methods In this section we identify some domestic devices and products which are engineered with energy efficiency in mind including refrigerators (fridges), freezers and washing machines.
Alliance to Save Energy The Alliance to Save Energy promotes energy efficiency worldwide to achieve a healthier economy, a cleaner environment, and greater energy security.
Energy Star ENERGY STAR is a joint program of the U.S. Environmental Protection Agency and the U.S. Department of Energy helping us all save money and protect the environment through energy efficient products and practices.
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