[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.

[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.

[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.

[Free Registration/Login may be required to access all resource tools.] Describes the air pollutants released from fossil fuels, biomass burning, and volatile organic compounds.

[Free Registration/Login may be required to access all resource tools.] Explains the cycle of carbon through the atmosphere, geosphere, and biosphere.

[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.

[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.

[Free Registration/Login may be required to access all resource tools.] Reveals how human population growth has paralleled advances in agriculture, such as the advent of agriculture, and the onset of the Green Revolution.

[Free Registration/Login may be required to access all resource tools.] Covers parts of the central nervous system and their functions.

[Free Registration/Login may be required to access all resource tools.] Describes the meaning of biodiversity. Includes videos and review questions.

[Free Registration/Login may be required to access all resource tools.] This lesson covers multiplying matrices by a scalar number. Students examine guided notes, review guided practice and attempt practice problems.

[Free Registration/Login may be required to access all resource tools.] This lesson explains how to multiply two matrices and presents practice exercises.

[Free Registration/Login may be required to access all resource tools.] This lesson covers finding the inverse of a 2 x 2 matrix. Students can look at guided notes and then attempt practice problems.

[Free Registration/Login may be required to access all resource tools.] Covers different patterns of population growth.

[Free Registration/Login may be required to access all resource tools.] Describes the two major divisions of the peripheral nervous system and their functions.

[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.

[Free Registration/Login may be required to access all resource tools.] Identifies the various layers of the Earth, including the crust, mantle, core, lithosphere, and asthenosphere.

[Free Registration/Login may be required to access all resource tools.] Describes types of mining, their environmental costs, and reclamation.

[Free Registration/Login may be required to access all resource tools.] Describes the mostly massive features created by glacial erosion and deposition.

[Free Registration/Login may be required to access all resource tools.] Explains how and where rivers erode and deposit sediments, including particles and dissolved ions.

[Free Registration/Login may be required to access all resource tools.] Distinguishes between erosional and depositional features created by ocean waves on a shoreline.

[Free Registration/Login may be required to access all resource tools.] Explains why keeping water from being polluted is preferable to cleaning it after being polluted, and what has happened since the passage of the Clean Water Act in...

[Free Registration/Login may be required to access all resource tools.] Describes the sources of water pollution, such as municipal, industrial, and agricultural.

[Free Registration/Login may be required to access all resource tools.] In this lesson students explore geometric dilations. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.