Science can be messy… But that is the best part!
By Matt Nicholas, Exeter-Milligan Science Instructor
In eighth grade earth science this week, students were exploring the composition of local soil. Each of them brought a sample of soil from their homes. They were then tasked to analyze all of the items and substances in their samples. They used hand lenses, sifters, and their senses to separate the soil. Our goal was to build a definition for soil.
After compiling a list of everything found in the samples, we classified them into categories: Rock pieces, organic matter, and trash. We then discussed the different amounts of water in the samples and if there was not much water, what replaced it? Air!
Through this investigation we were able to produce the following definition: Soil is a mixture of rock fragments, organic material, water, and air. The students then went to their textbooks to see what it had to say. The definitions matched almost word for word.
We then went on to discuss the presence of the “trash” we found, as well as, the bugs, feces, and other neat stuff.
Pictured are Malorie Staskal and Tyler Due examining their soil samples
Background in picture: Taylor Pribyl, Trenton Vossler, Josh Meyer, and Devin Harrison