Two exams that are scheduled for the same time?

<p>Next year I am taking AP Chemistry and AP Environmental Science.</p>

<p>I found an AP exam schedule for next year, and once again, Chem and Environmental Science are scheduled for the same time. </p>

<p>Will I just take one when the time comes and then take a Form B for the other test later? How does that work? Will I get to chose which test I take first?</p>