Official April 13th 2013 ACT Science Section Thread

<p>Anybody know the answer for when V and mv were the same? The one with the star chart. Choices were 1 pc, 10, pc, and two others…</p>

<p>Or the question asking what was the interval for when water was removed? (1 min, 2 mins, 5 mins, or 10 mins). Had to do with the Br2O3 concentration charts.</p>

<p>Thank you, LikeASir and pk12ab - the graph of the still water hit 0 degrees Celsius (i.e. froze) first. So Stream A would be less likely to freeze first because it had the circulating water, and the graph with the moving water hit 0 degrees after the one with still water.</p>

<p>@crushroller it was 10 pc when mv were equal and it was checked every 5 minutes because all of the graphs had 5 minute intervals on the x axis</p>

<p>anybody know what the other choices were for the question that asked when v equaled mv?</p>

<p>Agh…do you guys think that -2 could still be 34, or no?</p>

<p>I may be mistaken, but I’m pretty sure the rats were given both unlimited food and water.
Since there was no data regarding their food intake (only fluid consumption), I assumed the statement applied to both the women and the rats.</p>

<p>the one regarding the freezer one and what temp it would be after the temps were equilized was -12. Cause it stated in the passage that the air temp of the freezer was -12</p>

<p>also the insulated lid and upper and lower temps was up to 14 im sure, cause the highest starting temp was 14</p>

<p>@ameyers123
the passage stated that the rats were given “solid rat food” so yeah</p>

<p>Does anybody know about how many questions there were in the star passage? I really ran out of time and literally guessed on most of those:(</p>

<p>To be exact, I think the question was asking more of the different foods the individuals would eat ,if I recall correctly. (This is about the rat question.) My reasoning is that the women’s food was different and completely immeasurable. The rats’ food was the same therefore an average would easily solve if one rat ate more than the other.</p>

<p>@ kommatmebro</p>

<p>I believe there were 5 or 6</p>

<p>I thought it started at 14, no 16</p>

<p>Yes i thought it started at 14 as well.
@dlee96 when you say “up to 14” do you mean “greater than 8 but less than 14” or just “14”? I don’t remember what the other choices were but I think I chose “greater than 8 but less than 14”.</p>

<p>The science part was hard as I don’t know what. The one with the stars made no sense!!!</p>

<p>Personally, I thought that the science section was really easy, but it seems as though either you loved or hated it this time around.</p>

<p>I thought this was the easiest one I’ve taken (between other released/school administered practice tests)</p>

<p>I would assume I got a 36 :P</p>

<p>With the iffy responses here, I can assume a somewhat generous curve? :)</p>

<p>Please do not BRAG</p>

<p>Why would the rapid river freeze faster. I don’t get why some people are saying that.</p>

<p>Also, the answer to the rat one is Study 1 since ACT never mentioned what the women ate. Since their diet was not pre-determined, the statement would affect the results.</p>

<p>I think that they are saying that because the temp dropped more evenly in the moving water than the still water. That being said, the top of the still water still reached it’s freezing point faster, which is why the still river was the correct answer</p>

<p>I thought people agreed that Fluid A would freeze slower since it was moving faster.</p>