"God made dirt, so dirt don't hurt!" In fact, dirt is soil, which is an amazingly dynamic material that we cannot live without! Dig into the depths of soil development, topography, and layers with this PowerPoint. The photos are fuzzy,...

First graders investigate composting. In this biology lesson, 1st graders identify ways to use garbage as fertilizer. Students examine soil and compost matter as well as the role of worms in the dirt.

Students problem solve to understand the value of the Earth's soil. In this value of dirt instructional activity, students understand how much of Earth is made of dirt and how important to our survival it is.

Students investigate how dirty air is outside. They read and discuss the book, The Lorax, by Dr. Seuss. They investigate using jars and lids to compare the dirt left each day as they remove the lids. They observe the lids and discuss if...