A thorough explanation of erosion including causes of soil erosion, water erosion, and water erosion.

Site provides a brief description of soil texture as well as discusses the relative size of soil particles.

Have you ever played in dirt from your yard? You were actually playing with one of the most important natural resources on earth - soil. Watch a short video on soil and a second video showing the phases of plant development using...

Check out a world map hosting a variety of options for views of various soil types. Identify the different soils and where they can be found.

Foundations for many types of structures rest on soil. This project shows how you can investigate the bearing capacity of different types of soil.

For this guided inquiry students will specify soil types by using various methods of determining soil textures and analyze them with a soil triangle. This activity is a laboratory investigation where students gather data on soil...

Help Detective Le Plant dig for clues in the soil to solve this case. You'll need to find out what soil is, why it is important, and in what kinds of soil plants grow.

Plants need nutrients to grow, those nutrients come from the soil, and nutrients can be added to soil to help plants grow better.

Get to know the five different kinds of soil .. clay, sand, loam, chalk, and peat.

A detailed primer on the composition of soil, its color, pH, texture, and its profile.

Become a detective and solve the soil mystery! To solve the case you must discover what soil is, why it's important, and in what kind of soil do plants grow. You will find out the four components of soil along with the different soil...

This Pedrosphere site provides a twelve chapter overview of soil science. Numerous topics are discussed and each chapter has a self-test to test your knowledge on the different aspects of soil science. Some chapters are only previews.

How does soil in its native condition function? How do forests and native grasslands produce plants and animals in the complete absence of fertilizer and tillage? What are the principles by which these soils function? The answers to...

Soil is the foundation of conventional on site wastewater treatment.The drainfields used with on site systems work because the soil around the trenches acts as a filter and removes organic matter, some of the nutrients present in...

Descriptive site provides details on the physical properties of soil. Contains a brief description on soil texture as well as structure, consistence and color.

Use this interactive website to learn everything you wanted to know about the four components of soil: minerals, organic, water, and air. Many links along the way assist with comprehension by allowing you to view photographs, charts, and...

[Free Registration/Login may be required to access all resource tools.] Describes the characteristics and types of soil.

The Chicago Field Museum provides a comprehensive soil education project covering topics such as soil structure and organisms living underground. Students can use the site for research or do the full-blown project, where they establish a...

Students will work in small groups to dig holes 1 meter deep. Students will work with measurements as they dig and measure. Students will observe the different types of soil and how the soil changes as they dig. Students will write and...

In this soil study, young scholars investigate a soil sample to discover what is inside the soil. Working in partners, they explore to see if there are any plants, animals, dirt, or other (water and air) in the soil.

Fourth graders study the differences between humus, sand, and clay soil.

Students examine soil samples for this activity and decide classify them according to whether they are sandy, silty or clay.

Soils are made of particles of different types and sizes. The space between particles is called pore space. Pore space determines the amount of water that a given volume of soil can hold. Porosity is the percentage of the total volume of...

The goal of this plant biology science fair project is to make and test an herbicide made from the leaves of the black walnut tree and investigate the toxicity of black walnut trees.