Fields of Study in Science

[smallfish]

Earlier this evening I had a conversation with a child about 10 years
old. When I asked her how school was going, she said "great" and that
science was her favorite class. When I asked her why she liked
science, she said that she liked it because she was learning about
“EVERYTHING”. What is “everything”? She said it was about animals,
plants and people. How we all live and grow, and how things work.

I came home and typed in “What is science?” into my favorite search
engine. I tried other terms and methods and came up with an awesome
number of options. As I perused the sites, I realized that I do not
really know all of the possible fields of study.

Very sadly, I will admit that my course of studies has included,
primarily, non-scientific studies. (Please forgive me, I've even
taken courses in Operations Research and Physics taught by the best!)

My questions:

1) What is the definition of science? (Please give 3 definitions and
their sources.)

2) What is the difference between a ‘hard’ and a ‘soft’ science? What
are the “basic” sciences. (These are the terms that were used when I
was in school. Are these terms still used?) (Please give 2
definitions and their sources.)

3) Most important, where can I get a LIST of ALL (or most) fields of
study in science.

This list should include primary (basic?) fields of study. (For
example, biology, physics, chemistry, geology, psychology,
mathematics)

This list should ALSO include at least 5 ‘sub’ levels of study. For
example, micro-biology, marine biology, molecular biology …

It is also VERY important that your sources can easily be copied and
pasted into a spreadsheet so that I can play around with the data, add
definitions, major events in the field, etc.

Thank you for your help.