The oceans are a precious natural resource, part of Earth's carbon cycle. But what happens if the oceans absorb too much carbon dioxide? Many scientists are concerned that the increased absorption of carbon dioxide is causing them to...

In this 21-day unit, students are introduced to the anchoring phenomenon-a flameless heater in a Meal, Ready-to-Eat (MRE) that provides hot food to people by just adding water. They complete investigations to collect evidence to support...

An overload of nutrients, called eutrophication (Greek for "good-nutrition"), can be harmful to estuaries. This phenomenon is also referred to as "over-enrichment," or "nutrient pollution". Students will investigate the range of...

Investigate biological systems that support plant life by constructing a self-sufficient, enclosed environment for growing plants.

Through 10 lessons and more than 20 hands-on activities, students are introduced to the concept of an environment and the many interactions within it. As they learn about natural and human-made environments, as well as renewable and...

A great starting point for learning about the weather and for finding help starting your own investigation of what affects the weather. Site is organized into the following sections: "The Atmosphere," "The Water Cycle," "Powerful...

Students investigate ocean chemistry. The article discusses Jim Bishop, ocean cycle, the biology of the sea, and carbon in the sea. The resource consists of pictures, quotes, and links to additional resources.

Filled with printable pages of both plant and animal pond life, Enchanted Learning features fact sheets with color pictures.