Great question! Dr. Universe refers to her friend Jim Harsh, a scientist, from Washington State University to answer.

A resource to help students learn about the importance of dirt.

After completing this activity, students will understand the source and the process for the formation of soil, the different types of soil, and the components of soil.

Hop on your dirt bike, compare fractions, and win the tug of war!

Did you know that the #1 pollutant in North Carolina is dirt? When soil is washed into streams and river, it smothers small animals and fish by clogging their gills. Look for bare patches of ground around your home and around your school...

Teachers can download this teaching package that introduces students to the science of paleontology. Fossil formulation and details about the work of paleontologists are discussed. Find out how paleontologists discover, stabilize, and...

Proportions where students determine the missing number to make the proportion true.

Have you ever had to dig a hole in really hard dirt? It is a lot of work. In this experiment you can make an instrument to test the soil and find out how compacted it is, before you dig.

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...

The rascally meerkat gang is making a mess of the zoo. Divide fractions to dig the dirt and catch those 'kats! In this activity, students will focus on dividing fractions, starting with single-digit denominators and working up. This...

A simple overview of the important roles microbes play in agriculture. You'll learn how some microbes can be hazardous to plants while others help fertilize and build soil, and kill insects.

Investigate how our lives depend upon having healthy soil by engaging in these interactive activities. Links are provided for further exploration.

Through interactive and hands-on activities, learn about the properties of soil.

Students chose a spot to investigate the soil on publicly owned land.

What makes our rivers and streams dirty? This brief overview discusses the causes of pollution in rivers and streams and how to solve it.