This site has information about where the tectonic plates were located in the Pleistocene and throughout geologic time. You can view animations of the plates moving or download models. Full description.

The Chesapeake Bay is the largest estuary in the US. Eleven rivers empty into the bay creating the Chesapeake Bay Watershed. From urban areas and cultivated fields in which wetlands were not preserved, runoff can run into the rivers unfiltered. This runoff can include nutrients that can cause uncontrolled growth of an abundance of algae which can eventually increase the turbidity of the river, not ... Full description.

The purpose of this resource is to measure the pH of water. Students use either a pH meter or pH paper to measure the pH. If using the pH meter, the meter needs to be calibrated with buffer solutions that have pH values of 4, 7, and 10. Full description.

The purpose of this resource is to have students learn to use the hydrology instruments and collect the hydrology data accurately. In the classroom, students practice using the instruments or kits for protocols, exploring the range of measurements and sources of variation and error. Full description.

The purpose of this resource is to measure the salinity of the water at your hydrology site. Students use a hydrometer to measure the specific gravity of the water sample, and use a thermometer to measure the temperature. With these two values, students will use tables to determine the salinity. Full description.

The purpose of this resource is to measure the salinity of the water using a salinity titration kit. Students will measure the salinity of saltwater using a salinity titration kit. Full description.

The purpose of this resource is to help students understand that some substances can be identified safely with your senses. Students will investigate how they use their senses for observation and why we use instruments to collect data. Full description.

These curriculum materials are from The Water Sourcebook series, a popular set of hands-on water environment activities. The activities, arranged by grade level, range from construction of a big book about water in the life of a fish for younger students to the exploration of the physics of artesian flow for older learners. Topics include the water cycle, conservation, consumption, contamination, ... Full description.

In this investigation, students examine Monterey Bay National Marine Sanctuary. After becoming familiar with a bathymetric/topographic map of the area, students select a transect along the seafloor to study some of the geological, biological, and physical features that are present. In this activity students use a bathymetric/topographic map as a tool for recognizing geobiological features of the sanctuary, ... Full description.

This activity explores understanding the greenhouse effect through a lab experiment. The effect on the atmosphere is included too. Full description.