April ACT Official Science Thread

Test Preparation ACT Preparation
21

<p>For mixed I put G? I think and contamination I originally put for yeast but then I put bacteria because it mentioned sterilizer so I figured he wanted to clean something.</p>

22

<p>I thought the mixed colonies question was really easy, you just had to pay attention to the position of the colonies. I said they sterilized so they didnt get cloth mixed with yeast, but I had no clue and I didn’t want to spend too much time thinking about it</p>

23

<p>36m more years for another crater to come? It was 100m years for that crater and it had already been 64m.</p>

24

<p>The one with the 20km crater, you had to look at the 1km part right? At first I was like it doesn’t even say crater size (I didn’t read any of the passages to keep up pace), then I checked up top and was like yup.</p>

25

<p>@JDE1221 </p>

<p>Yep, it said that an asteroid made a crater that was 20 times its diameter. It seemed like I had to skim the passages of the science section more than usual.</p>

26

<p>I said they sterilized it so that only the NAG stuff would be put on the EP</p>

<p>Also, was mized plate G in the middle?</p>

27

<p>This science was so much easier than the last one I took (december). Once you figured out the symbols and meanings the questions were easy as shi t.</p>

28

<p>I said F for the mixed plate one. Because on F the first two plates showed only two colonies, and the second two showed all colonies. And the two samples were like - - + + and + + + +</p>

29

<p>blaine: that is what i infered because obiviously it will be colder at high altutide. </p>

<p>what was funny was on the section that had the greek W it seemed like half the answers were 1^7</p>

<p>i thought the science was real easy obviously im everyone is hoping for a 36 but ill be happy with 31-32</p>

30

<p>What about the question that says does R vary proportionally with (variable) or something. I put no because R changes and the other one remains the same.</p>

31

<p>Does anyone remember their answers to the colony questions where it was either like O, N or P? those were kinda confusing I think I put P for both but those probably weren’t right.</p>

32

<p>@ENT I put that there would only be water vapor because as pressure decreases of water, it is easier to boil water=more vapor. Right?
<a href=“http://www4.nau.edu/meteorite/Meteorite/Images/Sublimation1.jpg[/url]”>http://www4.nau.edu/meteorite/Meteorite/Images/Sublimation1.jpg&lt;/a&gt;&lt;/p&gt;

33

<p>Yah, I also put water vapor for that one.</p>

34

<p>for that question about the max altitude being 4000 if it went over did you guys get C. There would be more ice things and less water vapor?</p>

35

<p>@ENT/JDE</p>

<p>Can you describe the question in more detail?</p>

36

<p>It said why can’t they experiment at an altitude at 4000m?</p>

37

<p>yea why couldnt they experiment it?
and also was the awsner to that question 100m years?</p>

38

<p>100mil years was when the meteor would hit earth again, yes.</p>

39

<p>Wasn’t the answer for that like 35million or something. It said that it hits earth every 100million years and the last time it hit earth was 65million years ago…</p>

40

<p>hell yes! also for that 4000m question I put C it was because the water would be frozen right?></p>