In this activity, students measure the pH of local rainwater samples and prepare a map of the sample values. They will understand that the combustion of coal produces sulphur dioxide, which combines with rainwater to produce acid rain, a weak form of sulfuric acid. Full description.

In this lesson students discover how side-scan sonar can be used to locate objects underwater. Students will describe sidescan sonar, compare and contrast it with other methods used to search for underwater objects, and make inferences about the topography of an unknown and invisible landscape based on systematic discontinuous measurements of surface relief. This hands-on activity uses online data ... Full description.

This National Aeronautics and Space Administration (NASA) site provides classroom resources about the Moon. A teacher's guide contains basic detailed information about the Moon, such as the lunar landscape, craters, and Moon rocks. The lesson plan and activities sections cover phases of the Moon, lunar landforms, a Lunar Prospector model, and orbits. Full description.