ESS2.E: Biogeology

Activity to measure the amount of microbial activity in the soil.

Soils around the world vary in color, texture, structure, and chemical, physical, and biological composition. Slides and activities on soil orders

In the hot, wet areas of the world, large jungles can form, with lots of different trees, animals, and flowers. Not all tropical soils are jungles. Includes slides and activities

Every soil sample that you touch is different from all others. Slides and activities

There is a lot of life above the earth. But in most systems, there is more life BELOW the soil than above it. Slides and activities

This section provides an overview about the importance of soils to the human world, history, and housing. Slides and activities

Forest soils form where it is not too hot, and not too cold. The type of soil that forms depends on what type of vegetation grows. Includes slides and activities

In this activity, students investigate three different soil samples with varying moisture content. They use a soil moisture probe to determine the percentage (by volume) of water in each of the soil samples.

In this activity, students will explore the variety of organisms that live in soils.

Surface soil particles are held together by various organic substances. The gluing of soil particles together into
aggregates helps maintain pores and channels in the soil for air and water to enter and move through it.