Some guidelines to writing in science

(1)          Always write with the reader in mind. 

In science they tell you to write so that someone with scientific background but little knowledge of your topic can understand. 

I like to use the idea of "the imaginary reader". This could be a master's or final-year bachelor's student from a subject related to yours. This person doesn't understand unless you explain everything or give references to a source where they can find more information. You need to introduce every topic briefly.

(2)          Say only what is important.

If you do not explain yourself in enough detail, no-one will understand your results and ideas. However, if your text is too long and detailed, no-one will want to read it to the end and you will never be able to communicate your results and ideas. Writing accurately and concisely is one of the most important skills you need to learn as a scientist.

(3)          Always use references.

Without references, your statements are just your beliefs. 

(4)          Use simple English

I love English literature and poetry as much as anyone, but this is science. You are more likely to waste time and make your text unnecessarily long and confusing if you include too much complicated language. Remember that the reader is probably also not a native English speaker. Also, try to think in English as much as you can, rather than directly translate what you would say in your mother tongue.