In this fool-proof lab, students observe purple onion skin under the microscope. Using both fresh water and salt water, they will observe the effects of hypertonic and hypotonic solutions on the onion cells. No dye needed! This lab worksheet is editable.
Materials Needed: Microscopes, slides and cover slips, purple onion, water, salt, beakers, tweezers or scalpel, eyedroppers, and paper towels.
Also included in your purchase is a digital Google slide version of the lab. Great for distance learning or absent students.