Diatoms b/w Diatoms

Diatoms

Diatoms, a type of algae, are found floating in the phytoplankton of the seas. Their cell walls contain silica. When diatoms die they sink to the sea floor. Their soft parts decay and the silica remains. Over time the pressure of the seawater pushes the silica together to form one large layer. This silica is mined and used as an ingredient in abrasives and polishes.

Teachers

Micro-organisms can be used to demonstrate principles of biology and to model industrial processes, as well as offering opportunities for teaching across the curriculum.

Microbiology is a popular option for practical work in schools. Micro-organisms are ideal for use in the school laboratory as they are relatively easy to maintain, present minimum risk given good microbiology laboratory practice are economical to do and can provide data which can be analysed using statistical techniques.

Microbes and basic principles

Microbes are extremely versatile and, as living organisms, can be used to teach many of the basic principles of biology. They can also be used to demonstrate How Science Works.

Safety information

A guide to the safety considerations when handling microbes in the lab.

Practical advice

A selection of safe, tried and tested microbiology investigations that are suitable for key stages 3 and 4 safe and equivalent Scottish qualifications.

Activities

A range of student activities that can be used to support microbiology teaching in the classroom.

Preparation of media and cultures

Recipes for microbial culture media.

Resources

SGM produces a wide range of microbiology teaching resources for all age groups click here to find out more.