SAT Subject Tests

<p>With the College Board program ScoreChoice we can essentially choose which subject test scores colleges will see but apparently some colleges require you to send all SAT subject test scores? Is that true? Can someone educated me on the topic please because I'm getting different answers from everyone. How will colleges know that you did not send in all of your subject tests? Because I took World History freshman year and Biology sophomore year and I got around 650 on both which I don't want colleges to see because it is not a good score. Will they end up seeing it? </p>