Six lessons cover this chapter. Open any of them on its own below, or meet it in place inside chapter 2 of the book. Tick a lesson off once you can predict what it will do before you touch it.
1
How Small Is a Microbe?
Slide the zoom from millimeters down to nanometers. See why none of them show.
2
The Light Microscope
Tap the parts. Then dial the lens and the oil and watch the detail sharpen.
3
4
The Gram Stain
Run the four reagents and time the decolorizer. Watch both cells take color.
5
From Specimen to Answer
Drive the whole lab path. Collect, plate, streak, identify, then read the zones.
6
Read the Slide
Call the reaction, the shape and the grouping. Then write the report line.