Help scheduling, particularly AP Science classes

Pre-College Issues High School Life
1

Currently I’m a sophomore. I haven’t set down an exact career but I know I’m going into science and math. Probably the medical field or engineering. These are AP classes I have planned out for Junior Year.

-AP Biology
-AP Lang and Comp
-AP Seminar
-AP Government

And for Senior year (if the above follows
-AP Chem
-AP Physics
-AP Spanish
-AP Research
-AP Calc

I’m having trouble deciding on the order of taking AP Bio, AP Chem and AP Physics. Freshman year I took Honors Bio and now I am taking Honors Chemistry. I have/had an A in both classes and I my strong suit is science and math over liberal arts. I just need help which is harder or more useful to take over another. Or possibly there are other classes I should take in order to prepare myself, as well as classes that I could be necessary for science/medical career. Thank you

2 
  I assume you are talking physics 1? Your jr year schedule looks light compared to sr, so consider swapping physics for gov, physics 1 shouldn't be a huge stretch. I don't think order matters really. If you have space for stats, that would be a nice addition. I'm not familiar with seminar.
3

Physics 1 probably. I plan on taking a semester of Study Hall because I have a sport in the fall and then AP Gov in the spring because it is only 1 semester. Thank you for the advice. Seminar are research are AP Capstone diploma

4

Is capstone something you considered the pros and cons of?