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

Crown gall is a plant disease caused by the soil bacterium Agrobacterium tumefaciens. This project uses tomato plants to investigate whether garlic extract can prevent crown gall infection. Though this is a lengthy experiment, a...

This investigation will help students learn that different geologic materials have different characteristics.

This activity will allow students to bury various pieces of trash in a plotted area of land outside. After approximately two to three months, the trash will be uncovered to allow the students to investigate what types of materials...