Introduction - aims and learning outcomes
Calcium carbonate (CaCO3)
Calcium carbonate (commonly found in chalk) is present in egg shells, snail shells, and the shells of many small marine organisms.
Welcome to the online learning module for scanning electron microscopy. Through self-instruction, this unit will introduce you to:
- the basic principles of SEM operation;
- the origin of images and their formation;
- procedures for collecting and interpreting images;
- routines for preparing samples for investigation; and
- ways to work safely in an electron microscope laboratory.
You will also get the opportunity to “play” with a virtual Scanning Electron Microscope by following the guided instructions. This module will not make you an overnight expert in SEM, but it will provide the essential skills needed to begin experimentation and provide the scaffolding necessary to become a full-fledged electron microscopist through practice and perseverance.
At the end of the module menu is an online multiple choice test. You can do this at any time to determine how much you know about SEM, and repeat it as many times as you like. The result can be saved and sent to your teacher or supervisor if necessary.
If you do not wish to start at the beginning and go all the way through the site, the pages following this one give you the opportunity to tailor the site to your specific learning needs.
We wish you an enjoyable learning experience.