Materials presented here outline basic concepts related to groundwater, answering questions like "What is groundwater?" and "What is an aquifer?" More detailed topics include groundwater quality, sources of contamination, engineering problems presented by groundwater, and safeguards to the groundwater supply. A bibliography and links to other water-related sites are included. A French translation ... Full description.

This is an inquiry activity that, while based on a local area (the San Francisco Bay), could be adapted to the teacher's/student's local area. Students perform an experiment in which they observe how water pollution is absorbed into plants. The site contains a teacher's guide and printable student worksheet. Full description.

The purpose of this resource is to determine the latitude, longitdue, and elevation of your school and of all your GLOBE sites. The GPS receiver will be used to determine the latitude, longitude and elevation of your school or of your GLOBE sites. Full description.

This Internet-based collaborative project will allow students to share information about water usage with other students from around the country and the world. Based on data collected by their household members and their classmates, students will determine the average amount of water used by one person in a day. They will compare this to the average amount of water used per person per day in other ... Full description.

These six moon related activities are presented within six topic headings: observing the moon (including the phases), the origin of the moon, and tides. This is chapter six of the online book Eyes on the Sky, Feet on the Ground, an exploration into astronomy as a classroom tool for learning how to theorize, experiment, and analyze data. The activities are fully illustrated and contain detailed, step-by-step ... Full description.

In this lesson, students learn about the Moon's changing appearance and its pattern of movement. Through class discussion, activities, and multimedia resources, students will learn to identify the phases of the Moon, understand that it completes one revolution around Earth per month, and recognize that the Moon is visible sometimes at night, sometimes during the day, and sometimes not at all. Full description.

This brief description of the rock cycle is for younger students. They will learn about the processes by which the three types of rocks can be changed into one another. Full description.

This lesson is designed to teach younger students about why the Moon appears different during various times of the month. Students will acquire knowledge of how the phases of the moon occur in planet and satellite rotation, and demonstrate their understanding by writing an explanation of what they did and how and why it happens. Full description.

This site provides information about precipitation, evaporation, condensation, surface runoff, infiltration and transpiration, which are all part of the water cycle, a complex process that not only gives us water to drink and fish to eat, but also weather patterns that help grow our crops. The site has four sections. The introduction presents the overall concept while the second section covers each ... Full description.

This site contains a basic explanation of the rock cycle along with information on the difference between a rock and a mineral and a description of the three types of rocks (igneous, metamorphic, and sedimentary). The site also describes the crust, mantle, outer core, and inner core, which are the four different layers of the Earth. In addition, it has a diagram of the rock cycle showing its relationship ... Full description.