[Free Registration/Login may be required to access all resource tools.] In this learning module, students will investigate the chemical and physical properties of the unique and important substance, water.

For this lesson students will explore and compare the physical properties of water and oil. Student sheets are provided in English and in Spanish.

Explains what density is, how it is calculated, and how the density of water fluctuates depending on various conditions.

In this post assessment activity students review points covered in the attached unit and reach conclusions regarding the importance of water to human health. Student sheets are provided in English and in Spanish.

This comprehensive article provides information about the physical properties of water, the importance of water as an Earth material, the processes and cycles that water undergoes on Earth, its importance to life on Earth, and why we...

Students develop their own water molecule model to help them understand the idea that water has a slight positive charge at one end of the molecule and a slight negative charge at the other.

This site helps students construct a model of the arrangement of water molecules when present as solid, liquid or gas. Includes background information, lesson plans, links to standards and assessment ideas.

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

In this lesson students will investigate whether several common substances are soluble in water. Student sheets are provided in English and in Spanish.

In this instructional activity students will create and investigate a simple model of the water cycle. Student sheets are provided in English and in Spanish.

Information relating to the properties of water and its behavior.

Climates vary and understanding that water on earth reacts to the climate is a way to understand why water can be found as both liquid and solid on earth. Included in this lesson is a video of the activity in action, and an image of a...

Activity demonstrates that water has weight.

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.

This investigation will help students understand the physical relationships between natural gas, oil, and water in a reservoir and how these relationships can affect recovery.

This lesson focuses on the states of matter: solids, liquids, and gases. It also discusses the Kinetic Theory of Matter, Thermodynamics, Triple point, Phase Change Graphs and the Heating Curve of Water. It provideds adrawing of a heating...

Find out how EPA research supports efforts under the Clean Water Act and Safe Drinking Water Act.

In this lesson plan, students will trace the flow of water in the environment, investigate simulated effects of global temperature change on oceanic levels, evaluate changes within the water cycle, and explain several different...

Realize that there is more in ocean water than just salt. Find out about the salinity of water and how changes in salinity may affect organisms living in the water.

An exhaustive set of "lecture notes" on various topics in thermal physics (including thermal expansion). Explanations are well done and more interesting than most. Includes both a mathematical and conceptual treatment of topics. Humor,...

A very descriptive site that allows students to understand the different states of matter at the atomic level. Also discusses the process of phase changes and displays phase change graphs. Thermochemistry is also touched upon for high...

After reading some facts about the properties of water, students conduct experiments to measure the relative densities of water, ice and snow and submit the results to the website.

Use this interactive animation to find out about whether or not gases dissolving in water.

Students determine whether an object will sink or float by comparing its density to the density of water.