Do you read the passage on Chem / Phys?

Do you read the passage when you're doing Chem / Phys? I generally find that I don't need to, but I do it anyways out of precaution. On FL5, I tried to not read the passage and just search through it to find relevant information to answer the questions. I finished 30 minutes early and only got 2 wrong.

I find that I cannot use this strategy on the other three sections.