Caption The scanning electron microscope image shows a colony of bacteria (coloured bluish) around a few micrometres small root (brown) in the soil. The image represents how bacteria and microbial ...

12. Agate — a colorful, crystallized quartz — that formed inside a dinosaur bone when it was infiltrated with silica-rich water.

In this video, we see what happens when vinegar and bacteria interact underneath a microscope. This bacteria is taken from ...