Download presentation
Presentation is loading. Please wait.
Published byCathleen Sims Modified over 9 years ago
1
Energy Resources Essential Question: How do energy resources affect the environment?
2
Vocabulary Conservation Nonrenewable Fossil fuel Pollution Global warming Renewable Solar energy Wind energy Hydropower Biomass Geothermal energy
3
Concept Types of energy sources
4
Conservation Careful use and management of resources. Examples: ▫Insulating walls; ▫Constant thermostat temp; ▫Less air conditioning. Save / stewardship
5
Nonrenewable Used much faster than it can be replaced. (Can not be replaced in our life time.)
6
Fossil Fuel Formed over millions of years from the decayed remains of ancient plants and animals. Examples: coal; petroleum/oil; natural gas.
7
Pollution Releasing unwanted materials into the environment through burning fossil fuels.
8
Global Warming Rising average temperatures around the world. Fossil fuels release CO2 into atmosphere. Due to use of machines powered by fossil fuels.
9
Renewable Can be replaced as it is used or can not be used up.
10
Solar Energy Energy from the sun. Uses: Solar panels; solar cells; solar batteries. Advantage: no pollution. Disadvantage: expensive.
11
Wind Energy Energy of moving air. Uses: windmills or turbines. Advantage: no pollution. Disadvantage: noisy, danger to wildlife.
12
Hydropower Energy of moving water. Uses: power plants to produce electricity. Advantage: no pollution. Disadvantage: only in areas with large river; creates reservoirs – floods nearby areas.
13
Biomass Material from living things is used as an energy source. Uses: burning wood & fermenting crops (ethanol.) Advantage: reduces gasoline use. Disadvantage: releases CO2 & uses food source.
14
Geothermal Energy Heat energy from inside Earth. Uses: Heat buildings; produce electricity. Disadvantage: Requires location over volcanically active ground.
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.