Pollen is a fantastic subject to study with a microscope. The diversity of shapes of pollen grains is enormous and a lot of interesting information can be derived from it.

Amoebas building their own home.

The inside of the oral cavity is covered with a layer of squamous epithelial cells. These are relatively large, flat cells that are constantly being produced and rejected by the oral mucosa. It is quite easy to examine these cells microscopically.