Radioactive pollutants can enter the body through ingestion, inhalation, absorption, or injection. The last lesson in a series of 36 introduces pupils to radioactive pollution. They study its sources, both natural and man-made, its...

Energize the cells of young biologists with an edible life science activity. Engaging students in exploring the inner workings of plant and animal cells, this activity involves using colored jello and various sweet and...

Getting water to a tap requires an understanding the fundamentals of fluid flow. Groups design, build, and test a piping system to get water from the source — a five gallon bucket — to a tippy tap. The objective is to be able to...

Explains what natural gas is, how it is formed, its composition, measurement terminology, how companies locate and extract it, processing, how it is transported and stored, uses, and safety considerations. (Published: September 20, 2011)

Review of the last forty years of interstate highway development. Includes data in table and graph form detailing such areas as fatalities, cost, and economic impact.

Find out some factual information about Russia. Here you will find the national anthem, information about the physical geography, the climate in an easy to read graph form, the language, population, economy, natural resources,...

Explains what standing rocks are, how they are formed by erosion, and gives the names of some well-known ones in Indiana.

Water is the source of life on earth. It exists in many forms and is constantly changing. The circulation and conservation of earth's water is called the hydrologic (or water) cycle. Find out how water evaporates, condensates,...

Presents many general country specific facts about Brazil in a well organized chart form. Content includes: geography, people, government, economy, communications, transportation, military, and transnational issues. This site is enriched...

Presents many general country facts about Colombia in a well organized chart form. Content includes: geography, people, government, economy, communications, transportation, military, and transnational issues. This site is enriched by...

Presents country specific facts about Honduras in a well organized chart form. Content includes: geography, people, government, economy, communications, transportation, military, and transnational issues. This site is enriched by links...

Presents many general country facts about Canada in a well organized chart form. Content includes: geography, people, government, economy, communications, transportation, military, and transnational issues. This site is enriched by links...

Explores general country facts about Uruguay in a well organized chart form. Content includes: geography, people, government, economy, communications, transportation, military, and transnational issues. This site is enriched by links to...

Presents many general country specific facts about Venezuela in a well organized chart form. Content includes: geography, people, government, economy, communications, transportation, military, and transnational issues. This site is...

Provides many general country facts and statistics about Belize in a well organized chart form. This site is enriched by links to maps and an image of its flag.

Presents many general country specific facts about Bolivia in a well organized chart form. This site is enriched by links to maps and an image of the Altiplano salt flats.