The chemistry set is probably cheaper than the book. They used to sell chemistry sets for children to play with that were not advertised as for college students and which thus had a much lower price than a new edition of a Chemistry book for only a single college class that is only for 1 semester before the new edition begins. It is probably not safe for most children these days to play with chemistry sets but that is how they were advertised
Also if you take college chemistry classes in the U.S.A. I would guess you probably do not have to buy a chemistry set because they have all the equipment in the classroom for most undergraduate level courses except possibly if a research project is required to graduate.
But taking college classes in a field of science does not make you a scientist
Using the scientific method makes you a scientist and college tries to undermine the scientific method in favor of politics
@shortstories with you just telling me about the scientific method, you open another doors to me.
Also you can get free math, statistics, chemistry and physics books online and in public libraries
All you have to do is follow the instructions and do the problems then check if you got the right answer in the back of the book
Do not start with the advanced books but work your way up
For example do a physics mechanics textbooks without calculus then a physics electro-magnetics textbook without calculus
Do not start with astronomy without electricity & mechanics first
You will need to know trigonometry and algebra before you are ready for physics but some physics textbooks might teach you the trigonometry you need
For Chemistry you only need algebra
But you will not understand chemistry as well unless you start with physics first
Just find books that were used for beginner level courses at Universities in the past and get them for free at public libraries
Astronomy courses that non science majors tend to take do things like make claims like "scientists did calculations to prove the big bang based on data" then they do not show calculations
So you want to study algebra and trigonometry textbooks you can get for free in the library then find a free book for a physics mechanics course without calculus in the library as your starting place