Improving science ACT score

I recently received a 31 on my ACT (after first receiving a 29). My sub-scores were…
Writing: 35
Reading: 33
Math: 30
Science: 26
My goal was initially to get a composite score of 30, but now that I have gotten a 31, I would really like to get to a 32. Obviously, the area I need to improve in order to do so is science. Any ideas on how I can accomplish that? I believe I have from now until the second week of September to do so! Thanks.

The science section is based on reading and interpreting charts. You do not need to know physics or chemistry to answer the questions. You should get the Real Act prep book and take practice questions and UNDERSTAND why you got a question wrong and WHERE the answer is found in the data