Cell biology and microscopy

What you'll learn

1. 1

   Imagine you are looking at a tiny onion skin through a magnifying glass. You can see little boxes — those are cells! 🧅

2. 2

   What do you use to see cells clearly?

3. 3

   Drag the slider to focus the microscope on the onion cells. Can you make them sharp?

4. 4

   Let's label the parts of a microscope together.

5. 5

   Which part of the microscope holds the slide?

6. 6

   Now calculate the total magnification: eyepiece = 10×, objective lens = 40×. Multiply them!

7. 7

   What is 10× multiplied by 40×?