which science tests have the LEAST material?
Are you asking this with the purpose of self-studying a science SAT II or AP?
@ryanordy88 yea exactly 
sat II. many friends suggested me biology.
I self-studied Bio this fall and got in the upper 700s. It is definitely possible, and I didn’t think it was that bad. Chem and physics would definitely be harder to self-study, physics more so (I also took the chem SAT II but only after taking AP Chem at school). I took Honors bio (which most people take at my high school) as a freshman, and self-studied for a couple of weeks over the summer and a couple weeks in October 2016 for the November test. I studied a lot more for Bio M. But on test day, I ended up having enough time to do Bio E and M. I submitted Bio E because I felt stronger with that section. If you are a science person and have the time to study, I would definitely recommend it. I used Barrons to study I think.
@ryanordy88 thank you rian \m/
@ryanordy88 btw how many weeks did you spend studying? dhow many hrs a day?
Just kidding. Honestly like not that much maybe 1 hour a day.
@ryanordy88 hah thats familiar… in november sat i got 1150, so i had 1 month for december sat, for last 2 weeks , i barely went out , dropped 3 KG and yea studied for 8 hours a day lol… eventually hardwork paid off and i got 1320 (im int student)