What are the major fields of Science?

The basic three fields of Science (used by most schools) are:

• Biology: the study of living things,
• Chemistry: matter and reactions,
• Physics: how the universe works.

but there are other sciences that don't quite fit into just these three, such as Engineering and Computer Science. Mathematics is also usually classed as a Science.

Wikipedia uses 5 types of sciences to categorize everything:

1. Formal Science - Maths, Computer Science
2. Physical Science - Chemistry, Physics, Astronomy, Earth Science
3. Life Science - Biology
4. Social and Behavioural Science - History, Geography, Psychology
5. Applied Science - Engineering, Healthcare

See the 'Template:Science' link below for a list of categories and sub-categories that Wikipedia uses.