Green masses in ditches and ponds are often caused by networks of long threads originating from filamentous algae.

Cyanobacteria or blue-green algae are undoubtedly the most important microorganisms that have ever appeared on Earth. Here you can read more about these fascinating microorganisms.

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.

Sand can look beautiful under the microscope. Of course there are many different types of sand and so far I have only studied a few types with the microscope.

The wide variety of colors in flowers and fruits is largely caused by pigment containing organelles called chromoplasts. Chromoplasts belong to the plastids and they are responsible for the bright red, orange and yellow colors in many fruits and flowers.