Keep within a water budget. Learners find out that less than 2.5% of Earth's water is available to drink—and that there is a fixed amount of water. Scholars read an interesting article comparing the available water to a game of Monopoly...

Break down light into spectra. Scholars learn how atoms emit and absorb photons and come to understand how this process allows scientists to identify different atoms based on either absorption lines or emission lines. Learners then...

Pack just enough to fit. Crews determine what personal items to take with them on a trip to Mars. Each team must decide what to take with them on a two-and-a-half year trip to Mars and whether their items will fit within the allotted...

Learn about the newest part of Earth, Japan's Niijima Island.

Learn interesting information about the Earth, the largest of the "terrestrial" planets.

Site provides information on the Earth's atmosphere as well as offers additional information about Earth.

Burning fossil fuels is causing the planet to heat up, causing weather patterns to change, sea levels to rise and diseases to spread. Scientists are concerned with the rising temps of Earth.

This article explains that as our knowledge of life on the planet evolves, we've come to use the word biosphere as a way of explaining the entire intertwined network of life on Earth. This concept combines an understanding of geology,...

Article reports on the recent discovery that many suns in the universe host "Earth-like" planets. Includes a vocabularly list.

Students will learn how greenhouse gases temporarily trap heat within Earth's atmosphere, warming the planet via the greenhouse effect.

From ABC News in Science, Marilyn Head's article centers on research behind the discovery of the planet in the Milky Way which most closely resembles the planet Earth.

Discover interesting facts about Earth's partner, the moon, which is more like a double planet than a planet and a moon.

The ArchaeoGlobe Project assessed knowledge on human land use over the past 10,000 years, through the contributions of more than 200 archaeologists. It concluded that, by 3,000 years ago, most of Earth was already transformed by...

Dr. Universe answers this question after talking with WSU's Katie Cooper. Katie is an expert in the geology of Earth and objects in outer space.

A look into what controls the rise of oxygen on the Earth and maybe on other planets as well.

Earth's temperature depends on the balance between energy entering and leaving the planet's system . When incoming energy from the sun is absorbed by the Earth system, Earth warms. When the sun's energy is reflected back into space,...

Read how ten environmental leaders have changed the world by taking action on protecting the Earth and its resources.

From ABC News in Science, Irene Klotz's article discusses the findings of researchers and scientists related to the discovery of an "Earth-like planet" which is capable of supporting life.

The Earth's atmosphere is a thin layer of gases that surrounds the Earth. It composed of 78% nitrogen, 21% oxygen, 0.9% argon, 0.03% carbon dioxide, and trace amounts of other gases. This thin gaseous layer insulates the Earth from...

The morning alarm rings. You take a hot shower, brew up a cup of coffee, read a bit from the morning newspaper and hop in the car to get to work on time. Have you ever stopped to consider the total environmental impact involved in each...

Learn what aspects of our planet have an impact on climate. Links to related materials.

Acceleration, an increase in the rate of change, is occurring both in the Universe and in human culture on planet Earth. This article explains these fascinating changes.

Discusses the information from the NASA spacecraft Messenger as it orbits Mercury and transmits photographs of the planet's surface to Earth.

Using the Kepler telescope, NASA scientists have estimated that one in five of suns in space host an Earth-like planet in what is called the habitable zone.