This website from the encyclopedia Wikipedia contains a definition for what a hot spring is, and tells how they differ from a geyser. Links are also provided throughout for additional information on related subjects.

This unit will discuss how external geological agents shape different parts of our earth. It contains 15 interactive activities.

The paths that water can take through Earth's systems are many and complex. Examine the following diagram from NASA depicting the water cycle. Studying the water cycle is important because changes in the water cycle affect all parts of...

Lesson plan shows learners that salt water can replace fresh water in a well along the shoreline.

Extensive site for teachers provides some helpful resources that pertain to plant and animal cells. Includes a microscope diagram as well as plant, animal and pond labs. Also contains links to structures and mechanisms, matter and...

Mercury in the geochemical cycle ultimately affects the food chain. Learn about this and its effect on the Everglades.

Explains the different stages in the water cycle while covering important vocabulary. Supported by lots of visuals and includes a good water cycle animation.

Excellent discussion and illustration of the water cycle.

Students simulate a sinkhole, and discover the geological catalysts that happen beofore sinkholes occur.

During this activity, students will try to construct model landfill liners out of two-inch strips of garbage bags within resource constraints. The challenge is to construct a bag that will hold one cup of water without leaking. This...

[Free Registration/Login may be required to access all resource tools.] Covers the water cycle.

Learn more about karst formations with this collection of slideshows. PowerPoint slides focus on how karst form, why they are important, and how to live with them.

Between 70 and 75% of the Earth's surface is covered with water and there exists still more water in the atmosphere and underground in aquifers. In this lesson, students learn about water bodies on the planet Earth and their various uses...

Excellent discussion and illustration of the water cycle. Explained in an easy to understand format.

Resource provides information on environmental issues of water pollution with an established learning objective. A case study about the Illinois River is provided explaining the environmental impact of water pollution. Environmental...

Students conduct a large-group brainstorming session on the various places where liquid water can be found on Earth. Then they create a list of places, such as oceans, lakes, rivers, aquifers and trace the path the water travels.

A collection of video lectures from a course on water resources engineering. Webpage includes twenty-eight lectures from a professor at the National Programme on Technology Enhanced Learning. Lectures vary in length and cover topics like...

An illustrated diagram of the water cycle that students can use for study.

This site is provided for by Reach Out Michigan! Use the site to learn if our eyes and taste buds can detect contaminated drinking water by doing a simple experiment.

Map the geographical area of a watershed, evaluate watershed use and describe land use practices of the people within one. Investigate the events surrounding the war over the Owens River in California at the turn of the 20th century.

Hydraulic fracturing, or "fracking", is the process of drilling and injecting fluid into the ground at a high pressure in order to fracture shale rocks to release natural gas inside.

[Free Registration/Login Required] This is a science flipchart that reviews the stages of the water cycle and also ways in which the water cycle affects weather such as hurricanes and tornadoes.

Find out about microorganisms that exist in various water forms.

[Free Registration/Login Required] This lesson covers information for middle grade students relative to the basic functions of the water cycle.