potato. We cut a slice of it and spread it
on the slide of glass. Then we added a
few drops of water and put a slide on top
of the water. Then we put it under the
microscope and we saw that the starch
looked like a shell. After that Mrs.
Kotnová showed us some pictures of
different
experiments
under
the
microscope that looked like art. She told
us that the microscope was very
expensive, 600 000 Kč or 24 000 euros.
Microscope
Mrs. Pavla Kotnová, also chemistry and
biology teacher, showed us samples of
sugar, salt, caffeine and vitamin C. We
examined them under a microscope and
changed the light and the colors on the
monitor. The crystals of the salt looked
like a shape of a octahedron. Then we
made our own sample of starch from
7