Roots and Shoots

Seed to STEM
Grade Level: Middle School

Many students have previous experience germinating seeds, but in  my experience, few have thought much about how plants grow in the correct orientation. How do plants send roots into the soil and shoots up to gather light?
This activity is designed for students to propose and design experiments as well as identify the stimulus that plants rely on to determine which way is up.

Quick Resources

Learning Objectives

• Students will propose testable hypotheses to explain a phenomenon.
• Students will design investigations and test their hypotheses.
• Students will analyze the results of their investigations and evaluate their hypotheses.
• Students will explain gravitropism as a mechanism plants use to orient their growth while under the soil.