reading and science ACT test

Based on Table 1, when 200 mg of each of the 4 foods was placed in the box, water accounted for more than 100 mg of the mass of which food(s)?

Cat food and ham only

As it is used in line 35, the word court most nearly means to:

seek to attract.

The narrator indicates that when he swam the 1,000- yard freestyle in the time trials, the world, for a moment, seemed to

slow down, allowing him to reflect in real time.

The passage describes angular momentum as the amount of a system's:

spin or rotation.

Which of the following events mentioned in the passage happened first chronologically?

The narrator leapt out over the diving well in late September.

. Polarity refers to whether a voltage is positive or negative (a voltage of 0 V has no polarity and can be ignored). Based on Figures 2 and 3, which 2 voltages were always opposite in polarity?

VL and VC

Which factor was varied in Study 1 but kept the same in Study 2 ?

Wind speed

A student predicted that the B. germanica would eat less cat food than ham by the end of the study. Do the data in Figure 1 support this prediction?

Yes; at 28 hr, the mass of cat food remaining was about 55 mg greater than the mass of ham remaining.

The author uses the phrase "a cathedral of a solo" (line 85) most likely to create a sense that Berry's solo was:

an intricate, awe-inspiring masterpiece.

Consider the 4 foods in order of the percent by mass of proteins, from lowest to highest. From food to food, as the percent by mass of proteins increased, the mass of food remaining at 28 hr

decreased only

Which dish in the study was intended to serve the purpose of testing whether some of the S. typhimurium cells became His + revertants without the addition of a mutagen?

dish 1

The author points out that many serious jazz enthusiasts know little about Berry primarily in order to:

explain why it's likely that readers would be unfamiliar with Berry.

. The author refers to the swirling pattern of a hurricane primarily in order to:

help explain the shortcomings of the plum-and pizza metaphor

When the narrator heard "Jump!" in his mind while swimming (line 67), he was most likely remembering:

his teammate's command the day the narrator caught the flag line.

. Passage B most strongly suggests that Vavilov was motivated to become an agricultural scientist primarily because he

hoped to help feed others

. According to the passage, Bailin discovered that the angular momentum of the warped portion of the Milky Way and the angular momentum of the Sagittarius Dwarf are

identical in both quantity and direction.

As it is used in lines 82-83, the phrase named and nurtured most nearly means:

identified and cultivated.

In the seventh paragraph (lines 57-75), the author compares sidemen to traveling salesmen in order to:

illustrate sidemen's supportive role in a band

The author of Passage A most likely states that the wild apples growing in the Tian Shan looked like apples found at the local grocery store to support the point that:

in the Tian Shan, Vavilov had likely found the wild ancestors of the domesticated apple.

. Based on the passage, the "end" the narrator mentions in line 80 most likely refers to his:

last chance to qualify for Junior Nationals.

What is the relationship, if any, between the concentration of Substance P and its potential to cause mutations?

. As the concentration of Substance P increases, its potential to cause mutations increases only.

. Which of the following statements best expresses the main idea of the passage?

. Evidence suggests that the warp in the Milky Way's disk results from the Milky Way's interaction with a small satellite galaxy.

4. Based on the passage, which of the following statements best describes Bailin's study as it relates to the field of astronomy?

. It provided evidence for an idea that scientists had long considered a possibility but had not yet proved

If a temperature of 5°C had been tested in Experiment 2, would the volume of gas collected for Zn more likely have been greater than 107 mL or less than 107 mL

. Less than 107 mL, because for a given metal, the volume of collected gas decreased as the temperature decreased.

. Based on the results of the study, what is the order of the suspected mutagens, from the substance with the least potential to be mutagenic to the substance with the most potential to be mutagenic?

. P, L, M, N

Which of Students 2, 3, and 4 would be likely to agree that Sample A and Sample B are composed of the same substance

. Students 2 and 3 only

1. The author's use of the words and phrases "thickets," "stretching in every direction," and "extensive forest" (lines 6-7) in Passage A most nearly serves to emphasize which of the following points?

. The magnitude of wild apples in Kazakhstan is stunning.

Based on Figures 2 and 3, from time = 7 msec through time = 13 msec, did the charge on the capacitor more likely change in sync with I or with VC ?

. VC; over that time interval, both the charge and VC increased and then decreased.

According to Figures 2 and 3, which voltage varied the least during the 20 msec interval?

. VL

The narrator of the passage characterizes the time trial in Houston as:

. an informal swimming event put together at the last minute.

The author of Passage B uses the phrase "whittle away" (line 80) to refer to the way that apple varieties have been:

. gradually lost from nursery catalogs, farmers' markets, and the American table.

The narrator describes the natatorium as being nearly empty of spectators the day of his race in order to:

. illustrate that the perfect racing conditions the narrator had hoped for weren't likely to occur

For the narrator, compared to practicing in the outdoor pool, practicing in the indoor pool is:

. less appealing.

The author indicates that during Berry's time as a musician, swing music was primarily regarded as:

. music for dance parties but not music for study.

. The statement "That's where you're going, now hurry up" (lines 35-36) can most directly be attributed to the

. narrator, as he speculates about what the cheering boy meant when the boy pointed at the pool.

The author describes Henderson's "Blues in C Sharp Minor" as:

. odd, haunting, and relaxing.

. According to the passage, the central bulge of the Milky Way is comprised of:

. older stars and a black hole.

The passage directly compares the Milky Way's disk as it is affected by its warp to:

. pizza dough being spun in the air by a chef.

It can reasonably be inferred that the problem the author mentions in line 33 refers to:

. the question of which physical processes caused the warp in the Milky Way

The passage indicates that during the narrator's swim at the time trial, he understood for the first time that:

. the swim was an event that was important to him alone.

The particular strain of S. typhimurium chosen for the study lacks normal DNA repair mechanisms. Which of the following statements gives the most likely reason this particular strain was chosen? The scientists:

. wanted the bacteria in the study to be unable to repair the mutations caused by the substances.

Compare the results of the 2 trials in Study 2. In which trial did the volume of runoff per 20 min reach a greater maximum value, and in which trial did the volume of runoff per 20 min decrease to zero from the maximum value in the shorter amount of time?

. without sand layer without sand layer

. Consider the volume of gas collected in the trial in Experiment 2 for Ni at 30°C. The same approximate volume of gas was collected in the trial in Experiment 1 for what mass of Ni ?

0.30g

. How many temperatures were tested in Experiment 1, and how many temperatures were tested in Experiment 2 ?

1, 5

According to the results of Study 1, for which of the wind speeds did the runoff volume per 20 min decrease to zero from its maximum value before 500 min ?

1.0 m/sec and 2.5 m/sec only

. Based on Figure 2, at which of the following times was the current in the circuit flowing counterclockwise?

15 msec

According to Figure 1, the mass of cheese remaining at 4 hr was closest to which of the following values?

185 mg

. Suppose that the trial in Experiment 1 with 0.25 g of Zn is repeated, except that the inverted graduated cylinder is replaced by inverted test tubes, each completely filled with 60 mL of water. Based on Figure 1, how many test tubes will be needed to collect all the gas?

2

A period is the time required for a wave to complete one full cycle. Based on Figure 3, the period for VL was:

20 msec

According to Figure 2, the maximum positive value of VS was approximately:

250V

Based on the diagram and the description of Study 1, which of the following expressions would most likely be used to calculate the volume of the sand layer in the plastic box (before chipped ice was placed on top)?

30 cm × 60 cm × 120 cm

Consider the statement "The B. germanica ate the food between 0 hr and 4 hr, between 4 hr and 16 hr, between 16 hr and 24 hr, and between 24 hr and 28 hr." This statement is consistent with the data in Figure 1 for how many of the 4 foods?

4

. Consider the balanced chemical equation in the passage. Based on this equation, if 10 moles of HCl are consumed, how many moles of H2 are produced

5

. Passage A makes which of the following claims about plant species that are found in Kazakhstan?

Aside from apples, at least 157 plant species found in Kazakhstan are either direct precursors or close wild relatives of domesticated crops.

Which of the following variables remained constant throughout both experiments?

Atmospheric pressure

. Before bacteria were added to it, the dish that was intended to serve as the control dish in the study lacked which of the substances listed below?

I and III only

Based on the passage, how did Berry's personality affect his career?

His modest and easygoing personality kept him out of the spotlight and, consequently, he received less attention as a performer

According to the passage, which of the following statements best describes the movement of the Sagittarius Dwarf with respect to the Milky Way?

It appears to be in a roughly polar orbit around the Milky Way

According to the author, what is unique about the June 1940 rendition of the song "A Ghost of a Chance"?

It's the only recorded piece that features Berry from beginning to end.

. The volume of runoff measured at 200 min in Study 1 for the 4 wind speeds is best represented by which of the following graphs?

J

Suppose that the temperature of Sample A is increased to 250°C at 1 atm of pressure. At 250°C, would Sample A be a solid or a liquid?

Liquid, because the melting point of Sample A is 126°C.

. Suppose that the temperature of Sample D is increased to 890°C at 1 atm of pressure. Will the sample's density be lower than or higher than it was at 20°C and 1 atm ?

Lower; Sample D will be a gas, and gases generally have lower densities than do solids.

. Consider the claim that 2 samples having the same density will always be composed of the same substance, regardless of the values of the other 4 properties. Which of the students, if any, would be likely to agree with this claim?

None of the students

Which of the following statements best describes the difference in the tone of the two passages?

Passage A is celebratory, whereas Passage B is cautionary

. Based on Student 1's explanation, the same substance composes both of the samples in which of the following pairs?

Samples C and D

Based on Student 3's explanation, the same substance composes both of the samples in which of the following pairs

Samples G and H

Consider the statement "Two samples that have the same mass, volume, density, and boiling point are composed of the same substance, even if the two samples have different melting points." Which of Students 2 and 4, if either, would be likely to agree with this statement?

Student 2 only

Which of the following statements about the numbers of bacteria that regained the ability to synthesize histidine is consistent with the results of the study for Dishes 2 and 3 ? The number of bacteria that became His + revertants after exposure to:

Substance M was about 2 times the number of bac- teria that became His + revertants after exposure to Substance L.

Based on the results of the study, which of the suspected mutagens resulted in the greatest number of His + revertants in a dish?

Substance N

Which of the following statements describes a difference between Experiments 1 and 2 ? In Experiment 1:

multiple mass values of each metal were tested, but in Experiment 2, the same mass value of each metal was tested.

. Suppose Study 2 had been repeated, except in a lab kept at −1°C. The total volume of runoff measured over the 600 min in the repeated study would most likely have been

near or at zero, because −1°C is below the freezing point of water.

The researchers conducting the studies chose to use a box made of a type of plastic rather than of wood to ensure that all of the water from the melting ice would flow from the box and into the trough. The researchers most likely made that choice because that type of plastic, unlike wood, is:

nonporous and impermeable, and therefore inca- pable of absorbing water.

Passage A quotes Vavilov as saying "'I could see with my own eyes that I had stumbled upon the centre of origin for the apple'" (lines 11-12). In Passage B this quote is directly:

paraphrased by Salova.

Suppose a company wants to use food as bait in a trap designed to capture female B. germanica. Based on Figure 1, which of the 4 foods should the company place in the trap to maximize the chance of capturing female B. germanica ?

peanuts

In Passage B, it can most reasonably be inferred from the third paragraph (lines 74-79) that "centers of crop diversity" become crucially important when:

problems with a cultivated crop require experts to research a new variety of the crop

The author mentions Berry's solo in "Oh, Lady Be Good" primarily in order to:

provide an example of Berry's musical excellence.

The narrator of the passage can best be described as a swimmer who primarily:

recalls the swim of his life and the factors that motivated him during that swim

. Compared to the author of Passage A, the author of Passage B provides more information about the:

reduction in the number of apple varieties in North America over the past four centuries

. It can reasonably be inferred from the passage that the small satellite galaxy referred to in lines 35-36 is

the Sagittarius Dwarf.

. According to the author, Berry's solos as a recording session musician were often very short because he:

worked within the recording constraints of the era.