View this simulation to observe the process of smaller particles moving through a semipermeable membrane. Temperature is adjustable. [Must download the simulation to engage in the activity]

This site from the Colorado State University discusses the Otto cycle of a car engine. Includes a highly mathematical treatment of the efficiency of such engines. Includes a link to a java applet investigating the efficiency of such...

Piute Ground Squirrels are adapted to desert life. Their kidneys efficiently conserve water, and they are able to withstand high temperatures. Learn more about the Spermophilus mollis, more commonly known as a Piute Ground Squirrel, in...

Read about the use of data loggers in one high school class. The data loggers were the key to quantifying the relationship between temperature, light, and biodiversity. Although this is relevant to high school science links are provided...

A collection of video lectures from a general chemistry class for high school students. Lectures cover topics such as equilibrium, thermochemistry, electrochemistry, and acids and bases with forty-four lectures. Lectures vary in length...

The physical property of malleability is explained. The importance of malleability to various physical processes is discussed. Examples of materials with high malleability are identified.

Sort fossil leaves from 55 million years ago into groups with smooth or 'toothed' edges. Then, use a formula to calculate the percentage of each type and, from there, look at how high the temperature might have risen when global warming...

This pioneering nuclear reactor was the site of several milestones in the development of nuclear technology, including the first usable electricity (1951), the first self-sustaining chain reaction using plutonium rather than uranium...

This lesson will introduce young learners to oceans by looking at the animals, plants and water temperatures for different oceans.

An atom smasher, or particle accelerator, collides atomic nuclei together at extremely high energies, using engineering that exploits incredibly cold temperatures, very low air pressure, and hyperbolically fast speeds. Don Lincoln...

View facts about the climate of El Salvador compiled by GeographyIQ from selected publications of the U.S Department of State and from the CIA World Fact Book. Peruse the tables of data about average temperature highs and lows for three...

A detailed weather lesson plan written for the primary, intermediate, and junior high level. Topics covered are weather symbols, thermometer, graphing temperature results, clouds, moisture and air pressure.

[Free Registration/Login Required] This flipchart covers core concepts of Gas Laws for High School Chemistry. Topics covered are Boyles Law, Charles, Gay Lussac, Combined Gas Law, Avogadro volume, Temperature Conversion between Kelvin...

A map from 1898 of Mexico, Central America and the West Indies. The map includes an inset map of Cuba and the Isthmus of Nicaragua. "The surface of the Rocky Mountain highland in Mexico is quite similar to that of the great plateau...

A map from 1890 of the United States showing physical features, and annual mean temperatures and rainfall. The map shows high mountains and lower ranges, watershed division boundaries, rivers, lakes, coastal features, and is color-coded...

"South China comprises the drainage basins of the middle and lower Yangtze River, the basin of the His Chiang (West River) in Kwangtung and Kwangsi; and the mountainous coastal provinces of Fukien and Chekiang. The division between the...