[Free Registration/Login may be required to access all resource tools.] Describes the sources of water pollution, such as municipal, industrial, and agricultural.

[Free Registration/Login may be required to access all resource tools.] This study guide summarizes the key points of water distribution. Includes a few questions to check for understanding.

[Free Registration/Login may be required to access all resource tools.] This study guide summarizes the key points of water pollution. Includes a few questions to check for understanding.

Of course it can, you say: ice is water and ice floats. And you're right. But we're talking about water in the liquid phase Can liquid water float on water? The goal of this project is to investigate what happens to layers of water with...

Can water remain liquid below its normal freezing point? If it does, that water is supercool(-ed). This project shows you a method for supercooling water. You can test water from different sources to see whether or not it can be...

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...

In this cooking and food science fair project, determine if you really need 6 quarts of water to cook a pound of pasta. The Science Buddies project ideas are set up consistently beginning with an abstract, objective, and introduction,...

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.

Use this site as a resource to learn about the many aspects of water.

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.

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...

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...

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

An illustrated article helps learners understand the water cycle and the distribution of Earth's water.

A simple lab activity to demonstrate that ocean currents are influenced by changes in water density.

We know that plants, and even bouquets of cut flowers need water to survive, but we often do not think about how water moves within a plant. In this science project, you will use colored water and carnations to discover how water travels...

The goal of this science fair project is to build batch solar collectors from different colors of plastic bags and see which collector is the most efficient in heating water.

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...