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

This tutorial introduces students to the properties of soil.

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.

[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.

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...

A seven-instructional activity unit on discovering how the boiling point of water is affected by elevation. Additional materials, such as for assessment, can be accessed through the links on the left.

In this lesson students will investigate whether several common substances are soluble in water. 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...

Learn about the various attributes of water and how they affect life on Earth.

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

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.

Observe how heating and cooling affect the density of water. Combine the concepts of temperature, molecular motion, and density to learn that hot water is less dense than room temperature water and that cold water is more dense.

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,...

Students investigate water cycle processes by testing how cooling affects the rate of condensation of water vapor.

Students can carry out an investigation using sugar and water to determine whether heating or cooling a substance may cause changes that can be observed. This activity reinforces the ideas that the properties of materials can change when...

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.

Describes the physical characteristics of Daphnia, their importance as a food source for freshwater fish, their diet, life cycle, and methods of reproduction. Offers tips for how to start and maintain a colony of Daphnia that can be used...

Chances are, you have several materials around your house made of gelatinized materials. Gels are used in all kinds of products and materials: pudding, diapers, insoles, packaging, ice cream, toothpaste, and much more. In this project,...

Discusses the different types of bacteria with probiotic properties that are beneficial to humans' health. Also discusses bacteria that benefit water, soil, and plants.

Demonstrate the effect that dissolving different amounts of salt in water has on the density of the liquid.

An online activity which illustrates the magnetic property of diamagnetism associated with water. Contains a simple procedure and then a good explanation of the magnetic interactions that were displayed by the grapes.

A detailed overview of the Earth's atmosphere, with explanations about atmospheric properties, the structure of the atmosphere, its four layers, atmospheric processes, energy heat transfer, conduction and convection, and radiation. All...