A collection of downloadable, ready-to-use lessons and student worksheets aimed to raise awareness of the need for safe drinking water. Lessons are investigative in nature and utilize inexpensive materials that can be purchased at most...

Water is a valuable resource many often take for granted. This exercise however gives you the opportunity to learn about and discover how greywater (water that has been used for washing or bathing) can be used for watering ornamental...

Iron is an important mineral essential for good health. Iron deficiency can be a problem. In this science fair project, use a simple iron test kit to measure the concentration of iron in water. This experiement is explained clearly and...

Baby Beluga may swim in the deep blue sea, but the song doesn't mention how cold it is out there. Find out in this short project how a bit of blubber can be a useful adaptation when the water is ice cold.

This U.S. Geological Survey website explains a variety of uses for saline water. Pie graphs and bar graphs are used to illustrate the various uses. Click Home to access the site in Spanish.

In a bioassay, a living organism serves as a detector for toxins-the same way canaries were used in coal mines to detect invisible toxic gases. In this project, water fleas (Daphnia magna), a freshwater crustacean, are used in a bioassay...

In this cooking and food science fair project, measure how the water content of dried beans changes with time. The Science Buddies project ideas are set up consistently beginning with an abstract, objective, and introduction, followed by...

Use this science fair project to learn how to test your soil to see if it is getting the right amount of water from the sprinklers. Project is set up beginning with an abstract, objective, and introduction, followed by a section on...

Did you know that when you dip your finger in water and pull it out, the water is actually pulling back on you? Here's a way you can measure how much.

Have you ever wondered what makes water 'bead' up on a freshly waxed car? In this project you'll investigate the chemistry of surface tension by measuring how many drops of water a penny can hold.

Experiment with low-flow faucets and see how much water you can save in your home. The Science Buddies project ideas are set up consistently beginning with an abstract, objective, and introduction, followed by a section on terms,...

If you look carefully, you could find dozens of similar interesting phenomena that are all linked to the surface tension of water. Here is a project that will help you understand and measure the properties of water surface tension.

Did you know that soils can be alkaline, neutral, or acidic? Most plants grow best in soil near neutral pH, but some plants prefer slightly acidic and others slightly alkaline soil. What is the pH of the soil in your garden? What happens...

To survive, we need oxygen in the air we breathe. Oxygen is also essential for most aquatic organisms, but there is much less oxygen available in water than in air. Learn how to measure dissolved oxygen and then see how oxygen...

In this science fair project, use a calorimeter with an attached heating element to measure how water responds to added thermal energy.

The Center for Science in the Public Interest offers a discussion of contaminants that can be found in tap water and chemicals added to water in the public water systems. The topics discussed are arsenic, parasites, lead, turbidity, and...

In this lesson young scholars will learn about water treatment and what happens to water when it goes down a toilet and drains into sewers. Through further investigation students will understand the relationship between water treatment...

When it comes to making ice cream, in order to make the mixture cold enough to freeze, you surround the container with ice and rock salt. This experiment helps you learn how the addition of salt (or other substances) affects the freezing...

Harmful algal blooms occur when algae, which form the base of the ocean food web, grow in massive numbers and produce toxic or harmful effects on people, fish, shellfish, marine mammals, and birds. In this project you will learn how to...

Learning activities allow students to learn about tools for making science observations such as a magnifying lens and ruler. Then students describe how macroinvertebrates are adapted to their aquatic environment.

Here is an interesting project that could be approached from several different scientific angles: Environmental Science, Weather & Atmosphere, Chemistry, or Plant Biology. You can probably think of your own variations to emphasize...

In this environmental science fair project, students will build models of fields prepared by plow-based and no-till methods, and see which ones are best at retaining soil moisture and preventing surface runoff.

Great lesson plans covering a wide-range of science-related subjects. A wonderful resource for wonderful teachers!

An in-depth explanation of the Earth's water cycle, including a hyperlinked diagram that provides direct access to information about each phase in the cycle.