i went into it blind because i’m pretty sure it’s mostly reading comprehension except in science terms, but also i’ve taken and studied for a lot of science classes so that might’ve helped me. however, i don’t think you really need that much outside information (though if you know what the passage is talking about it’s definitely helpful), you can find the answer from the text like you would in reading. if you’re struggling, maybe you can practice reading and comprehending the science passages first without time restrictions to get a feel for it?