<p>Thanks in advance if you have any input!</p>
<p>My son was very frustrated that the ACT science passages he encountered on the real test were very chemistry/physics focused rather than biology/astronomy/geology etc. He came home hoping to figure out what he could do to improve on those types of questions for the next time around. I am embarrassed to say, I'm not quite sure what he is asking about because my science background isn't too great. He took it as a 7th grader so he doesn't even really know the terminology and I'm coming up empty trying to google these things. </p>
<p>If anyone who has a better grasp on science than I do, which would be about 99% of you, could give me some key words to search or ideas on what these might be I'd be so appreciative. I'm really proud that he is taking the initiative to figure these out after the fact--and its frustrating that I can't help him find the topics online.</p>
<p>Here is what he's asking:</p>
<p>One question dealt with the physics of a chain--googling 'physics and chain' isn't getting me anything useful.</p>
<p>Another was about a group of students who were doing a chemistry experiment in which substances were added to a solution that caused them to change color and the teacher wanted them to explain the color changes they observed. What kind of experiment would involve chemistry and adding things that change color? All I could come up with was PH but he says that isn't ringing a bell.</p>
<p>Thanks again! I know this is pretty vague but he just doesn't have enough science under his belt to be specific enough to know exactly what it is he is looking for. He is determined to have an 'aha!' moment with these passages and has been asking for weeks so thanks so much for your help!</p>