How hard did you guys find the TPRH science workbook? I'm doing well enough on chem/ochem/bio but I'm getting crushed by physics passages. I was just wondering what everyone else thought so I can compare myself against the standard. Thanks!
Ditto. They definitely fluctuate in difficulty. Even the ones not listed as Advanced are pretty hard. I am not perfect in any section, but I have seen improvement in my physics and orgo abilities.