This simple investigation asks students to view cells under the microscope and compare differences between plant and animal cells. Students are instructed in the procedure for removing the epithelial cells of an onion and staining with iodine. These cells are fairly easy to see and most beginning students will have no trouble locating the…
In this lab, students use a toothpick to get a sample of cells from the insides of their cheek. These cells are stained with methylene blue and observed with a light microscope.
Simple activity for observing cells. Use methylene blue and toothpicks to gently scrape cells from the inside of a cheek and view under a microscope.