guided notes on traditional energy resources chapter 26, section 1
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Guided Notes on Traditional Guided Notes on Traditional Energy ResourcesEnergy Resources
Chapter 26, Section 1Chapter 26, Section 1
1.1. The The SunSun is the ultimate source of is the ultimate source of the energy that humans use.the energy that humans use.
2. Whatever solar energy that is not used 2. Whatever solar energy that is not used right away by green plants is right away by green plants is storedstored. . When consumers eat producers, they When consumers eat producers, they use this stored energy for use this stored energy for their own life their own life processesprocesses..
3. 3. Traditional sources of energy, such as Traditional sources of energy, such as woodwood and and peatpeat, are derived from , are derived from producers such as plants. When organic producers such as plants. When organic materials are burned, the energy stored materials are burned, the energy stored in them is in them is released in the form of heatreleased in the form of heat..
4. The energy to make heat, provide light, 4. The energy to make heat, provide light, and to cook food is provided by and to cook food is provided by fuelsfuels, , which are which are materials that are burned to materials that are burned to produce heat or powerproduce heat or power..
5. Examples of traditional fuels include 5. Examples of traditional fuels include wood, field crops, and dried fecal wood, field crops, and dried fecal materialmaterial. Fuels derived from living . Fuels derived from living things are called things are called biomass fuelsbiomass fuels. The . The most important of these is wood.most important of these is wood.
6. The need to use wood as a fuel has led 6. The need to use wood as a fuel has led to to deforestationdeforestation in many areas of the in many areas of the world. This demand for wood has led to world. This demand for wood has led to the complete removal of forests and the the complete removal of forests and the erosion and loss of erosion and loss of topsoiltopsoil..
7. 7. Fecal material from cowsFecal material from cows often meets often meets the energy needs of people in the energy needs of people in developing countries with limited forest developing countries with limited forest resources.resources.
Use the space below to describe how peat Use the space below to describe how peat forms in a bog:forms in a bog:
When plants in a bog die, they fall into the When plants in a bog die, they fall into the water, which has low levels of oxygen. Instead water, which has low levels of oxygen. Instead of decomposing, the plant material builds up of decomposing, the plant material builds up on the bottom of the bog, where it is on the bottom of the bog, where it is compressed by the weight of overlying compressed by the weight of overlying material into a light, spongy material called material into a light, spongy material called peat.peat.
9. Fossil fuels, such as peat, are 9. Fossil fuels, such as peat, are energy energy sourcessources that formed over geologic time as that formed over geologic time as a result of a result of the compression and partial the compression and partial decomposition of plants and other organic decomposition of plants and other organic mattermatter..
10. Fossil fuels are considered 10. Fossil fuels are considered nonrenewable because nonrenewable because their formation their formation occurred over thousands or millions of occurred over thousands or millions of yearsyears..
11. Fossil fuels include 11. Fossil fuels include coal, natural gascoal, natural gas, and , and petroleumpetroleum. The high concentration of carbon . The high concentration of carbon and hydrogen in fossil fuels makes them and hydrogen in fossil fuels makes them very very efficientefficient energy sources. Most industrialized energy sources. Most industrialized countries, including the U.S, use them to fuel countries, including the U.S, use them to fuel power plants that supply electricity and to power plants that supply electricity and to fuel vehiclesfuel vehicles..
The three classes of coal are:The three classes of coal are:
1.1. Lignite: a soft, brown, low-grade coalLignite: a soft, brown, low-grade coal
2.2. Bituminous coal, which forms when lignite is Bituminous coal, which forms when lignite is compressedcompressed
3.3. Anthracite: the hardest and highest grade of Anthracite: the hardest and highest grade of coalcoal
13. When bituminous coal burns, it releases 13. When bituminous coal burns, it releases carboncarbon and and sulfursulfur and and nitrogen oxidesnitrogen oxides into the atmosphere, which causes into the atmosphere, which causes air air pollutionpollution. .
14. The term 14. The term petroleumpetroleum refers to natural refers to natural crude oilcrude oil found underground and on found underground and on Earth’s surface. Crude oil is refined into Earth’s surface. Crude oil is refined into a variety of products, such as a variety of products, such as gasoline gasoline and keroseneand kerosene..
15. Crude oil and natural gas migrate 15. Crude oil and natural gas migrate sidewayssideways and and upwardupward from their place of formation, from their place of formation, moving through the pores of moving through the pores of permeable permeable sedimentary rockssedimentary rocks such as limestone and such as limestone and sandstone. These pores are the sandstone. These pores are the reservoirsreservoirs in in which crude oil and gas which crude oil and gas accumulateaccumulate..