Even though they were written for upper-level high schoolers or college pupils, the labs herein are possible to use even in middle school. In the activity, kids observe osmosis in both potatoes and elodea plants, then record and graph...

Fifth graders examine the components of blood. Using internet websites and a handout, 5th graders search for answers to questions about blood. They explore components such as red blood cells, white blood cells, platelet and plasma.

Students investigate the process of osmosis using  fresh potato cuttings in saline solution. In this biology lesson, students explain the difference between hypertonic, hypotonic, and isotonic solutions. They collect data from...

An explanation of blood from the time it is drawn from the arm to its centrifugation to an analysis of the three components of plasma, white blood cells, and red blood cells.