The Oceans, Lakes, and Rivers book takes readers on a journey through Earth's amazing water resou...

The Water Pollution book helps children understand how contamination affects our water supply. Re...

Students can discover the fascinating planet we live on as they explore rocks.

Water is essential to all life, and Earths species rely on oceans, lakes, and rivers for their wa...

Where does waste come from? What are some proper ways to dispose of waste? Why is it important to...

The rock cycle is an ongoing process that recycles rocks from one type into another. There are th...

The rock cycle is an ongoing process that recycles rocks from one type into another. There are th...

From landfills to recycling, Waste explores the basic science concepts behind the way we process ...

Students can discover the fascinating planet we live on as they explore rocks.

The largest accidental oil spill was 134 million gallons (500 million liters). About 40 percent o...

Almost every stretch of open water on Earth is home to some kind of life. About 97 percent of Ear...

Discusses how rocks change over time, the effects of weathering and erosion on rocks, and how the...