Hey bk!
We don't have list that lists every Science passage. However, Science passages are found at least once on pretty much every test since 1991 (sometimes more than once), and you usually don't have to look too closely to be able to identify them. Once you do, you can track the science passages you identify using the Performance Tracker sheets on our free Self Study site here:
http://students.powerscore.com/self-study/index.cfm
Also, if you feel you need additional assistance with identifying those specific passages, we do offer the Reading Comprehension Passage Type Training book that you might find useful. You can find that book here:
https://shop.powerscore.com/?action=pro ... 00O2WN2IAN
Hope that helps!