Some white blood cells (the polymorphnuclear granulocytes) have a lobed and irregularly shaped nucleus in them. I show you here a simple staining reaction, which allows you to see this.
I show you a salt lake and put salt crystals under the microscope. The lake is pink because of microorganisms that live in the salt water.
I visited the southern parts of France (Camarque region) during my holidays and caught a mosquito there. I put it under the microscope.
In this video, I put several water plants from a river under the microscope. There is a biofilm growing on them, which can be seen with a microscope.
With the help of a microscope, we can determine the volume of a grain of sand to determine how many sand grains there are.
Here is a safe source of bacteria, which you can put under the microscope.
The ciliate Euplotes died and popped open right under the microscope. I think that some soap on the microscope slide could be responsible for that.
In this video you will see water melon cells, bacteria growing on a water melon, pollen of the water melon and xylem tissue, which transports water.
I had problems finding algae for microscopy in the lake I visited. Here is a suggestion on what to do in this case.
Face mites are microscopic animals that live in the human ski, in the hair follicles. They feed on the oil that the skin produces. Today I found one that moved around on my microscope slide.