CK-12 Foundation
Ck 12: Earth Science: Climate Change in Earth History
[Free Registration/Login may be required to access all resource tools.] Traces changes in Earth's climate through Earth history, especially in the past 2,000 years.
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Ck 12: Earth Science: Geothermal Power
[Free Registration/Login may be required to access all resource tools.] Presents the way geothermal energy is harnessed and some of its benefits and costs. Downloadable resources are also available.
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Ck 12: Earth Science: Tides
[Free Registration/Login may be required to access all resource tools.] Reveals tidal patterns and that tides are caused by the gravitational attraction of the Sun and Moon to Earth.
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Ck 12: Earth Science: Lithosphere and Asthenosphere
[Free Registration/Login may be required to access all resource tools.] The lithosphere is made of the brittle crust and uppermost mantle and lies on the plastic asthenosphere. Read about the properties of the lithosphere and asthenosphere.
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Ck 12: Earth Science: Metamorphic Rocks
[Free Registration/Login may be required to access all resource tools.] Covers metamorphic rocks, which form from previous rocks exposed to heat and/or pressure.
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Ck 12: Earth Science: How Ocean Currents Moderate Climate
[Free Registration/Login may be required to access all resource tools.] Looks at how ocean currents transfer heat from one place to another.
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Ck 12: Earth Science: Effect of Altitude and Mountains on Climate
[Free Registration/Login may be required to access all resource tools.] Studies the effects of altitude and mountain ranges on weather and climate.
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Ck 12: Earth Science: Weather vs. Climate
[Free Registration/Login may be required to access all resource tools.] Compares and contrasts the short-term phenomenon of weather with the long-term average of weather, otherwise known as climate.
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Ck 12: Earth Science: Heat Transfer in the Atmosphere
[Free Registration/Login may be required to access all resource tools.] Looks at how heat is transferred in the atmosphere.
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Ck 12: Earth Science: Types of Volcanoes
[Free Registration/Login may be required to access all resource tools.] Different types of eruptions create different types of volcanoes.
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Ck 12: Earth Science: Short Term Climate Change
[Free Registration/Login may be required to access all resource tools.] Looks at how El Nino and La Nina affect the climate.
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Ck 12: Earth Science: Sedimentary Rock Classification
[Free Registration/Login may be required to access all resource tools.] Explains that sedimentary rocks are classified by how they formed and by grain size.
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Ck 12: Earth Science: Principles of Relative Dating
[Free Registration/Login may be required to access all resource tools.] Introduces Steno's laws, which allow scientists to decipher the geological events that occurred and the order in which they took place, including how the relative...
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Ck 12: Earth Science: Long Term Climate Change
[Free Registration/Login may be required to access all resource tools.] Describes some factors that lead to long-term climate changes.
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Ck 12: Earth Science: Intrusive and Extrusive Igneous Rocks
[Free Registration/Login may be required to access all resource tools.] Describes the features of intrusive and extrusive igneous rocks that cool slowly and rapidly, respectively.
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Ck 12: Earth Science: Impacts of Hazardous Waste
[Free Registration/Login may be required to access all resource tools.] Discusses the impacts of hazardous waste on the environment and human health, and the provisions of the Superfund Act.
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Ck 12: Earth Science: Finding and Mining Ores
[Free Registration/Login may be required to access all resource tools.] Identifies some of the valuable minerals and metals, and how they are located, mined, and refined.
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Ck 12: Earth Science: Determining Relative Ages
[Free Registration/Login may be required to access all resource tools.] Distinguishes how to tell which rock unit is older than the ones around it and so reveal the geologic history of the region.
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Ck 12: Earth Science: Collecting Weather Data
[Free Registration/Login may be required to access all resource tools.] Describes the various instruments that scientists use to measure weather conditions, including advanced tools like satellites and radar.
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Ck 12: Earth Science: Bathymetric Evidence for Seafloor Spreading
[Free Registration/Login may be required to access all resource tools.] Describes features of the seafloor and how they are mapped by echo sounding. It touches upon the continental margin as well.
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Ck 12: Earth Science: Air Quality
[Free Registration/Login may be required to access all resource tools.] Presents information on the compounds that pollute the air, their sources, and the regions in which air quality is chronically bad.
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Ck 12: Earth Science: Adaptation and Evolution of Populations
[Free Registration/Login may be required to access all resource tools.] Explains how natural selection favors certain traits in a population so that the organism adapts to its environment, and that changes in the genes over time cause...
CK-12 Foundation
Ck 12: Earth Science: Environmental Impacts of Mining
[Free Registration/Login may be required to access all resource tools.] Describes types of mining, their environmental costs, and reclamation.
CK-12 Foundation
Ck 12: Earth Science: Landforms From Glacial Erosion and Deposition
[Free Registration/Login may be required to access all resource tools.] Describes the mostly massive features created by glacial erosion and deposition.