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Energy efficiency of different light bulbs (There's a Thief in My Kitchen)
http://www.ctenergyeducation.com//lesson.htm?id=7hbhnrx3

Connecticut Energy Education

Students calculate the cost of the energy used to operate a common three-bulb light fixture. They then compare the costs and amount of CO2 produced for similar incandescent and compact fluorescent light bulbs. Students also do a short laboratory activity to visualize why two bulbs, which give off the same amount of light, use different amounts of electrical energy.

Activity takes one to two class periods. Lamps and access to sockets necessary.

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Learn more about Teaching Climate Literacy and Energy Awareness»

Climate Literacy
About Teaching Climate Literacy

A combination of strategies is needed to reduce greenhouse gas emissions. The most immediate strategy is conservation of oil, gas, and coal, which we rely on as fuels for most of our transportation, heating, cooling, agriculture, and electricity. Short-term strategies involve switching from carbon-intensive to renewable energy sources, which also requires building new infrastructure for alternative energy sources. Long-term strategies involve innovative research and a fundamental change in the way humans use energy.
About Teaching the Guiding Principle
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Actions taken by individuals, communities, states, and countries all influence climate. Practices and policies followed in homes, schools, businesses, and governments can affect climate. Climate-related decisions made by one generation can provide opportunities as well as limit the range of possibilities open to the next generation. Steps toward reducing the impact of climate change may influence the present generation by providing other benefits such as improved public health infrastructure and sustainable built environments.
About Teaching the Guiding Principle
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Energy Literacy

Many different units are used to quantify energy.
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1.7 Units of energy.
Energy is a physical quantity that follows precise natural laws.
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Energy is a physical quantity.
Amount of energy used can be calculated and monitored.
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6.8 Calculating and monitoring energy use.
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Human use of energy.

Excellence in Environmental Education Guidelines

2. Knowledge of Environmental Processes and Systems:2.4 Environment and Society:D) Technology
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D) Technology.
2. Knowledge of Environmental Processes and Systems:2.4 Environment and Society:E) Environmental Issues
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E) Environmental Issues.
3. Skills for Understanding and Addressing Environmental Issues:3.1 Skills for Analyzing and Investigating Environmental Issues:C) Identifying and evaluation alternative solutions and courses of action
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C) Identifying and evaluation alternative solutions and courses of action.

Benchmarks for Science Literacy
Learn more about the Benchmarks

Decisions to slow the depletion of energy resources can be made at many levels, from personal to national, and they always involve trade-offs involving economic costs and social values.
Explore the map of concepts related to this benchmark

Notes From Our Reviewers The CLEAN collection is hand-picked and rigorously reviewed for scientific accuracy and classroom effectiveness. Read what our review team had to say about this resource below or learn more about how CLEAN reviews teaching materials
Teaching Tips | Science | Pedagogy | Technical Details

Teaching Tips

  • Educators should add short answer questions for a final assessment.
  • An interesting graphic that summarizes energy usage can be found at http://www.needtoknow.nas.edu/energy/interactive/energy-system.php.
  • For best results, place the light bulbs close to the thermometers (10 - 20 cm).
  • Educators should stress that the personal change in energy has to go beyond changing light bulbs, but it is a good start.

About the Science

  • Simple, yet effective, activity that has students investigate differences in energy expenditure between regular incandescent and compact fluorescent light bulbs.

About the Pedagogy

  • There are opportunities for data collection, written responses, data sharing and whole class discussion, which will address different types of learners.
  • The hands-on activity is a nifty way for students to understand why compact fluorescent light bulbs are so efficient and how much less energy loss (heat) there is with them.

Technical Details/Ease of Use

  • Very clear and well-illustrated directions for students and educators.
  • Hands-on part of the activity requires lamps and access to sockets.

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