This video/lesson series explains how the structure and behavior of H2O in liquid form gives water its properties, and make it a chemical essential for life. Also in this collection: a Victorian-era depiction of the water molecule; news...

Through informational text, interactive activities, animations, and video clips, students examine the chemistry of living things, and they learn how interactions from atoms are fundamental to life as we know it.

[Free Registration/Login may be required to access all resource tools.] Covers physical properties of water, hydrogen bonding, surface tension, and vapor pressure.

[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will describe the structure and polarity of a water molecule. They will also describe the hydrogen bonding that occurs in...

[Free Registration/Login may be required to access all resource tools.] Covers structure of water molecule, hydrogen bonding on water, polarity of water molecule, and bond angles of water molecule.

The purpose of this tutorial is to introduce you to some of the chemical concepts which are necessary to understand biology. Concepts include the basics for understanding biology, chemical bonds and attractive forces, the chemistry of...

An interactive animation showing some of the properties of water. See how the particles of water molecules move and stick together.

If you stick water in the freezer, it will take a few hours to freeze into ice. How is it, then, that cold packs go from room temperature to near freezing in mere seconds? John Pollard details the chemistry of the cold pack, shedding...

Learn about the autoionization of water, the autoionization constant Kw, and the relationship between [H+] and [OH-] in aqueous solutions.

You will find this list of questions interesting and amusing. "Things like, "Is salt water used for anything in the U.S.?," and How can we have a 100-year flood two years in a row?", are found on this this. Click Home to access the site...

Students are presented with examples of the types of problems that environmental engineers solve, specifically focusing on water quality issues. Topics include the importance of clean water, the scarcity of fresh water, tap water...

This resource provides a description of oxygen solubility in water as it relates to temperature and pressure with introductory definitions and sample data to analyze. Animations require Shockwave plugin.

The molecular basis of indicator color changes. Includes Chime structures for the acid and base forms of phenolphthalein, methyl orange, red cabbage indicator, and cyanidin diglucoside.

A page from the University of Maryland Physics Lecture Demonstration Facility. Provides directions for a teacher demonstration of the effect of an ionic solute upon the freezing point of water. Shows apparatus and set-up; provides...

An experiment where students test how the boiling point of water is affected by adding salt. The experiment is well laid out with pictures that show how to perform the experiment.

[Free Registration/Login may be required to access all resource tools.] Describes the composition of seawater, including dissolved ions in seawater and their source.

[Free Registration/Login may be required to access all resource tools.] Covers structure of ice and hydrogen bonding in ice.

The University of Siegen provides a lovely exothermic reaction shown by four large photos. Sodium peroxide and zinc powder with a touch of water.

Students are introduced to the fundamentals of environmental engineering as well as the global air, land and water quality concerns facing today's environmental engineers. After a lesson and activity to introduce environmental...

Through a series of five related sections, this 24 page pdf file examines a range of topics associated with states of matter including physical interactions between molecular units, bonding within molecular units, molecular units of...

In this lesson plan students will use data acquired with an ICP-MS to teach them about water chemistry at a variety of levels.

A set of questions about the molecular structure of water and of ice.

A detailed look at carbon isotopic composition isotope and carbonic acid in water. Sections include: "Carbonic Acid Equilibria," "Carbonic Acid Concentrations," and "Closed System, Mixing of Freshwater and Seawater."

A site showing the structures of water and ice and explaining how they are affected by hydrogen bonds. Includes a movie animating hydrogen bond formation and disruption.