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The Greenhouse Effect
http://environment.nationalgeographic.com/environment/global-warming/gw-overview-interactive/

National Geographic

This interactive contains four animated slides that introduce the greenhouse effect. An additional animation offers to 'explore more'.

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Learn more about Teaching Climate Literacy and Energy Awareness»

Topics

Greenhouse Effect
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Grade Level

Middle (6-8)
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High School (9-12)
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Slides are suitable for middle school students. Readings in the "explore more" section are more for higher level students.

Climate Literacy
About Teaching Climate Literacy

When Earth emits the same amount of energy as it absorbs, its energy budget is in balance, and its average temperature remains stable.
About Teaching Principle 1
Other materials addressing 1b
Sunlight reaching the Earth can heat the land, ocean, and atmosphere. Some of that sunlight is reflected back to space by the surface, clouds, or ice. Much of the sunlight that reaches Earth is absorbed and warms the planet.
About Teaching Principle 1
Other materials addressing 1a
The amount of solar energy absorbed or radiated by Earth is modulated by the atmosphere and depends on its composition. Greenhouse gases—such as water vapor, carbon dioxide, and methane—occur naturally in small amounts and absorb and release heat energy more efficiently than abundant atmospheric gases like nitrogen and oxygen. Small increases in carbon dioxide concentration have a large effect on the climate system.
About Teaching Principle 2
Other materials addressing 2c

Energy Literacy

Fossil and bio fuels are organic matter that contain energy captured from sunlight.
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4.3 Fossil and bio fuels contain energy captured from sunlight.
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Various sources of energy are used to power human activities .
Earth's weather and climate is mostly driven by energy from the Sun.
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2.3 Earth's climate driven by the Sun.
Greenhouse gases affect energy flow through the Earth system.
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2.6 Greenhouse gases affect energy flow.
Physical processes on Earth are the result of energy flow through the Earth system.
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Physical processes on Earth are the result of energy flow .

Benchmarks for Science Literacy
Learn more about the Benchmarks

Greenhouse gases in the atmosphere, such as carbon dioxide and water vapor, are transparent to much of the incoming sunlight but not to the infrared light from the warmed surface of the earth. When greenhouse gases increase, more thermal energy is trapped in the atmosphere, and the temperature of the earth increases the light energy radiated into space until it again equals the light energy absorbed from the sun.
Explore the map of concepts related to this benchmark
Light and other electromagnetic waves can warm objects. How much an object's temperature increases depends on how intense the light striking its surface is, how long the light shines on the object, and how much of the light is absorbed.
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

  • "Explore more" section may be more appropriate for the educator than the student.

About the Science

  • Four slides that introduce the greenhouse effect. Three videos are offered to "explore more". Simple visual and text explanation of the natural greenhouse effect and how human activities are intensifying this effect.
  • Comment from expert scientist: It is well built, and very clear. It is clear and simple in the way it explains what greenhouse effect is, what the main greenhouse gases are, and what effect they exert.

About the Pedagogy

  • The "Explore More" button contains links to a video about the causes of global warming, a map of global warming effects, and a quiz about climate change.
  • The extra material is good. But it is not clear how one could answer all the questions correctly in the quiz. There are some problems with the wording of the quiz, which may be misleading.

Technical Details/Ease of Use

  • User can click forward and backward through the 4 animated slides of content. There are some advertisements along the side of the interactive.

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