Education.com
Try
Brainzy
Try
Plus

# Tip #37 to Get a Top ACT English Reading Science Score (page 3)

By McGraw-Hill Professional
Updated on Sep 10, 2011

1. B   Notice that Table 1 is the table in Experiment 1 and Figure 1 is the graph in Experiment 2. The thermometer placed into the 30°C helium is shown on the graph by the solid line. Go to 25 s and look straight up until you reach the solid line. The solid line passes 25 seconds at around 40°C, so choice B is closest.
2. H   Don't be intimidated. Lots of students get scared off by this one. But it's just asking you how many degrees the temperature changed per second, that's what °C /s means. Remember our Mantra, if you are stuck, just do whatever seems most obvious. The temperature changed 4 degrees (from 21 to 25°\C) during that 1 second. So it changed 4/1 (which is just 4) °C/s.
3. B   Look at Table 1. Look at the 35_C solution column. Look down the column for the biggest jump between numbers. The biggest jump was from the first to second rows, which represents 1 second to 2 seconds. (Remember that the thermometer started at 15°, so the jump from 0 to 1 s was only 4°.)
4. J   This is another great example of "do what seems obvious." It would be pretty easy to convince yourself that this is some specific concept that you were supposed to have memorized from chemistry class. But remember, you need nothing memorized. Just use common sense. When would atoms move most slowly? When they are least hot. Hot atoms jump all over and cold ones chill out. That's where the phrase "chill out" comes from! So the coldest atoms would move most slowly. Look at the graph to find the coldest that the temperature in the 30°C helium (solid line) gets. Choice J is correct since the solid line gets lowest at 40 s.
5. A   Figure 1 shows that the thermometer in the 30°C helium took about 18 s to get to 40°C. And it shows that the thermometer in the 15°C helium took about 10 s. So the thermometer in 5°C helium would cool even faster, less than 20s.
6. H   The paragraph tells us that thermometer had an initial temperature of 45°C. So the thermometer will not be heated or cooled in the 45°C beaker of helium. This is the one used to test if the temperature remained constant. If the thermometer changed in this beaker, it would show that the helium was cooling over time, which would affect the results of the experiment. This element of the experiment that is unchanged is called the "control."
7. A   In Table 1, as time passes, all samples increase in temperature. Thus, since kinetic energy increases as temperature increases, as time passes and temperature increases, kinetic energy must also increase.

### Essay

The ACT Essay is graded by two readers, who each give a score from 1 to 6, yielding a total essay score from 2 to 12. Like the English section, the Essay is not testing to see if you are the next William Shakespeare. It tests whether you can write an organized essay with intro, body, and conclusion paragraphs. The ACT Essay seems a mystery to many kids. But it turns out that graders are trained to look for very specific things. If you give graders what they look for, you ace the essay. In the next 11 Skills, I'll show you exactly what they look for.

Go to: Tip #38