Presentation on theme: "Unit 5 Vocabulary 11/13/12 Which energy transformation produces electricity with the LEAST negative environmental impact: coal, solar, oil. S:"— Presentation transcript:
Unit 5 Vocabulary 11/13/12 Which energy transformation produces electricity with the LEAST negative environmental impact: coal, solar, oil. S:
P: Vocabulary Notes Energy Resources – anything that can be used as a source of energy to do work.
Energy Conservation – management of energy use through insulation, increasing energy frequency, and changes in patterns of use.
ENERGY SOURCES OF THE WORLD!
Renewable resources can be replenished. Energy sources like hydroelectric power, solar energy, and wind power. ENERGY SOURCES OF THE WORLD!
Nonrenewable resources take millions of years to form and cannot be regenerated in a short period of time. ENERGY SOURCES OF THE WORLD!
PETROLEUM is formed from animals and plants that lived millions of years ago when heat and pressure turned decayed matter into crude oil. nonrenewable
PROPANE is produced as a byproduct from natural gas processing and crude oil refining. It burns hotter and more evenly than other fuels. nonrenewable
NATURAL GAS consists primarily of methane but includes significant quantities of ethane, butane, propane, carbon dioxide, nitrogen, helium, and hydrogen sulfide. nonrenewable
COAL is formed from trees and plants in vast primeval forests, when heat and pressure turned decayed matter into coal. Coal is a part of the fossil fuels family. nonrenewable
NUCLEAR ENERGY is generated in reactors, when nuclear fuel fission heats water, and the steam turns turbines to run the generators that convert energy into electricity. nonrenewable
SOLAR ENERGY is generated when photovoltaic (PV) cells convert heat from the sun directly into electricity. renewable
HYDROELECTRIC POWER is generated when flowing water turns turbines to run generators that convert energy into electricity. renewable
WIND POWER is generated when wind turns turbines to run the generators that convert energy into electricity, which is then stored in batteries. renewable
BIOMASS is produced from vegetable oils, animal fats, recycled restaurant greases, and other byproducts of plant, agricultural, and forestry processing or industrial and human waste products. renewable
ETHANOL is a subset of biomass that is manufactured from alcohols, ethers, esters, and other chemicals extracted from plant and tree residue. It can be made from corn, sugar, wheat, and barley.
HYDROGEN fuel is a byproduct of chemically- mixing hydrogen and oxygen to produce electricity, water, and heat. It’s stored in a “cell” or battery. renewable
GEOTHERMAL ENERGY is generated by heat in the earth’s core. It is found underground by drilling steam wells (like oil drilling).. renewable nonrenewable
A: Word Wall Home Energy Survey Using your notes create a Word Wall Word. It needs to include a picture and the word big enough to see across the room. COAL
Write three sentences describing the energy resources that impact you most in your life. C:
What is the likely reason electricity use is so great in the summer? E:
The use of which of the following resources would be MOST affected by changes in weather: wind, geothermal, natural gas, nuclear? Edusmart: Energy Resources 11/14/12 S:
P: Watch Edusmart Take notes to use on quiz
A: Complete the Edusmart interactivity.
C: Quiz Answer the following questions. 1.What are the two groups of energy resources? 2.Name two nonrenewable energy resources? 3.Name two renewable energy resources? 4.What is a disadvantage of burning fossil fuel? 5.Where can you get energy at no coat and last forever?
E: JMS is trying to save money by managing its energy resources. What are THREE things your school could do to manage its energy resources?
Describe three ways in which you could reduce the energy usage in your home. Energy Resource Debate 11/15/12 S: Use your home energy survey!
Easy ways to conserve energy 1.Buy local food to reduce food transportation over long distances 2.Set your refrigerator temperature to 37°F and your freezer close to 3°F 3.Turn down your water heater thermostat to 120°F 4.Keep your car tires properly inflated. 5.Clean your sidewalks with a broom instead of a water hose
Source: US Energy Information Administration Today’s Energy 83 % = fossil fuels (oil, gas, coal) 17 % = nuclear and all other sources By 2035 81 % = fossil fuels (oil, gas, coal) 19 %= nuclear and all other sources
Demand for electricity worldwide 1970 Image Credit: NASA Photo from space - glow from electric lights at night.
Demand for electricity worldwide 2005 Image Credit: NASA Photo from space - glow from electric lights at night.
The last two days we learned about the different types of energy available in our world. Use the class set to read about the advantages and disadvantages of the different energy resources. P: Compare Energy Resources
A: Create a T-Graph Create a T-Graph in your binder(journal) of one energy resource comparing the advantages and disadvantages of using this resource. advantagesdisadvantages Coal
C: Debate Debate with your neighbor about the type of energy you compared and if you think it’s a energy source that is sustainable and cost efficient. Be prepared to share with class!
“The energy resource________________ is the best energy resource for the world to use because…” E:
Your city wants to build a new power plant. Which type of resource would you suggest the city use? (Make sure that your suggestion is practical for where youlive.) Give 3 advantages of using this resource, and 1 disadvantage. Bill Nye: Energy 11/16/12 S:
Energy Trivia Which of these products are made from petroleum? A. Aspirin B. iPods C. Skateboards P:
Energy Trivia Which of these products are made from petroleum? Answer: Petroleum is used in making aspirin, iPods and skateboards!
Energy Trivia What crop in Brazil is used to make ethanol to fuel cars? A. Corn B. Coffee C. Sugarcane
Energy Trivia What crop in Brazil is used to make ethanol to fuel cars? Answer: Sugarcane
Energy Trivia What percentage of the world’s population lives without electricity? A. 2% B. 25% C. 49%
Energy Trivia What percentage of the world’s population lives without electricity? Answer: 1.5 billion people— 25% of the world’s population Source: 2009 report by the U.N. Development Program
Energy Trivia What speed does wind need to travel to be converted into electricity? A. 8 MPH B. 26 MPH C. Any speed
Energy Trivia What speed does wind need to travel to be converted into electricity? Answer: 26 MPH
Energy Trivia What is the most commonly used renewable resource? A. The sun B. Water C. Wind
Energy Trivia What is the most commonly used renewable resource? Answer: Water Hydropower supplies nearly 1/5 of the world’s energy each year.
Energy Trivia Which state produces the most wind energy? A. California B. Texas C. Kansas
Energy Trivia Which state produces the most wind energy? Answer: California
Energy Trivia How long does it take the sun’s energy to reach the earth? A. 2 minutes B. 5 minutes C. 8 minutes
Energy Trivia How long does it take the sun’s energy to reach the earth? Answer: 8 minutes
Energy Trivia How much land is needed for a wind turbine? A feet B. 1-2 acres C acres
Energy Trivia How much land is needed for a wind turbine? Answer: 1-2 acres
Energy Trivia In which state do molecules have a different volume but not a different shape? A. Liquid B. Solid C. Gas
Energy Trivia In which state do molecules have a different volume but not a different shape? Answer: Liquid
Energy Trivia Who is the world leader in known coal reserves? A. Australia B. China C. United States
Energy Trivia Who is the world leader in known coal reserves? Answer: United States
Energy Trivia Which is the cleanest fossil fuel? A. Coal B. Oil C. Natural gas
Energy Trivia Which is the cleanest fossil fuel? Answer: Natural gas
Energy Trivia What is the earth’s temperature a few feet underground? A. 50°F B. 250°F C. It varies
Energy Trivia What is the earth’s temperature a few feet underground? Answer: 50°F year-round