In the elementary activity, students will dose radish seeds with two provided substances (instant coffee and a small packet of salt) and a water control. Students will then observe the treatment effect on radish seed germination over the course of three days, answer questions about experimental design, and interpret their results. In the middle school activity, students will dose radish seeds with two provided substances (instant coffee and a small packet of salt), and a water control. Students will then observe the treatment effect on radish seed germination over the course of three days, answer questions about experimental design, make a plot of the number of seeds that germinated for the different treatments, and interpret their results. In the high school activity, students will dose radish seeds with two different substances (salt and instant coffee) at several concentrations. Students will then observe the treatment effects on radish seed germination over the course of three days. Students will also answer questions about experimental design, plot dose-response curves for the different treatments, and interpret their results.
OREGON STATE UNIVERSITY
Open search box
