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...

Article reports on the increasing size of ocean animals over the millenia. Includes a list of key vocabulary.

Article reports on a new study that claims that the energy released from asteroid collisions may have sparked life on Earth. Includes a list of key vocabulary.

This article explores exactly what is considered alive but reviewing over the characteristics of life.

The aim of this article relates the nature of science to our current understanding of the origin of life and describe the formation of the atoms which build the Earth and its life.

Did you know matter is made up of atoms? In this article learn about the smallest unit of matter called the atom.

Learn the fundamental properties of atoms in this article. Understand the definition of atomic number, atomic mass, and isotopes. [6 min, 50 sec]

Review over covalent, hydrogen, and ionic bonding in this article. Learn how molecules are held together by chemical bonds.

This article reports on recent research that explains why corals are in nearly constant motion. Includes a brief video. [0:16]

Discusses a research study undertaken at Mono Lake in California, known for its extreme salty conditions, which supports unusual life forms. Scientists found that a bacterium could survive using arsenic instead of phosphorus,...

Can you go for a month without sleeping? Most mammals can't, but scientists have found some marine mammals that do. Find out why some orcas and dolphins don't sleep for weeks at a time.

Article describing research done by scientists in their quest to understand the origins of life. Questions are posed throughout about the nature of scientific research.

This in-depth article illustrates the concept of geologic time, and helps the learner understand why fossils are rare.

This article describes tools ecologists use to describe the present state of a population and predict its future growth.

An article about what China is doing to turn around its pollution problems. Read about plans for establishing large eco-communities in China, which are intended to make China's air and water cleaner as they also absorb millions of...

An article which describes the slow process of crop cultivation. The author argues that crop cultivation and village life may not have been connected.

An interesting article addressed to students discusses the life of children on the western frontier, about the time of the "Little House" stories of Laura Ingalls Wilder.

Article reports on the debate in the UK around the consumption of horsemeat.

What does it mean to be alive? Scientists are now revisiting this question as they discover previously unknown microorganisms at the bottom of the ocean.

From ABC News in Science, Maggie Fox's article examines research connected to the various species of life discovered in the "dark waters around Antarctica." These findings include sponges, crustaceans, and new worms.

Describes the importance of laser technology to modern life, how the laser was invented, how lasers work, and what we can expect in the future from laser technology. [Date of Article: October 27, 2010]

As annoying as mosquitoes are, they are an essential part of the web of life. However, they also carry and spread diseases that can kill people. See how scientists are researching mosquitoes to help control the spread of these diseases.

Describes the multitude of plastic trash scientists have found on a beach in Hawaii and in the oceans. Explains what a gyre is, and how plastic trash gets trapped in the eye of a gyre. Looks at the serious impact plastic materials have...

A media-rich examination of Leonardo's work that includes a timeline of the artist's life, animations of his drawings that attempt to unlock something of the genius in his thinking, up-close details from his notebooks, thematic looks at...