How Are Soils Classified?

It's time to roll up those sleeves and get a little dirty in the second lesson of this series on the science of food. Investigate where plants and animals get the minerals they need to live in this two-part exploration of soil. First,...

Take young geologists on a trip through the rock cycle with this series of four earth science presentations. Beginning with an exploration of minerals and the different properties they exhibit, this resource goes on to explore...

Groups of three scientists from the rocky planet Zog investigate the composition of soil so that they can take the information back to their home, create soil there, and begin to grow food.

You don't have to travel far to learn about rocks, just step outside, pick up a stone, and begin investigating. After taking a class walk around the school grounds collecting rocks, young scientists practice their skills of observation...

Join the tree house detectives in learning about the processes of the water cycle, water conservation, water treatment, and water as a limited resource.

Explore soil, genetic traits, natural resources, and pollution in a series of lessons that focus on biodiversity. Kids complete experiments to learn more about the importance of varied genes and organisms in an ecosystem.

What type of soil holds in moisture the best? Find out with a guided-inquiry based instructional activity in which scholars investigate three types of soil—sand, clay, and silt—and the ability of each to retain waiter for plant growth....

Fourth and fifth graders explore soil by taking a simulated field trip under the earth. They go to an Internet site that runs a simulation which charges them with finding a source of pollution that could destroy all of Earth's soil, and...

Young scientists explore the dark, damp, and dirty world of earthworms in this hands-on life science unit. In order to gain a better understanding of these slimy critters, children first perform a series of investigations before finally...

Digging up a more valuable geology app than this one would be hard to do! This app introduces junior geologists to rocks, minerals, soil, and fossils with informational text, photographs, and videos. Check it out, but don't take it for...