ACT Science Scection

Hi,

I am planning on taking the ACT exam this September but my science score is not improving.
I have been consistently getting a 25 on the science section (taken multiple practice exams already).

All my other sections are above 30 so I would like my science score to at least be a 30.

Have you guys ever experienced this? If so, how did you improve?
What strategies and books did you use to bump up the science score (I have the Red Book and Barron’s 36)?

Thanks!