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Types of Questions
Test Format
True or False
Practice #1
Practice #2
100
This type of question is fairly straightforward and simply requires you to read and interpret the information presented
Data Representation
100
How many questions are on ACT Science?
40
100
True/False: Read the whole passage in full and try to absorb as much information as possible.
False. Treat this like ACT Reading. Skim the passages, get the Main Ideas, and move on to the questions!
100
The percent of Earth's surface covered by high clouds in January 1987 was closest to which of the following? 

A. 13.0% 

B. 13.5% 

C. 14.0% 

D. 14.5%

B. 13.5%. This is a Data Representation question. The answer can be found by simply looking at the chart/graph on the page.
100
Based on the results of Study 1, the average monthly wet deposition for Cu^2+ over the 12-month period was: 

A. less than 50 µg/m2 

B. between 50 µg/m2 and 75 µg/m2 

C. between 75 µg/m2 and 100 µg/m2 

D. greater than 100 µg/m2

B. between 50 µg/m2 and 75 µg/m2.
200
This type of question presents a series of different experiments on the same topic. They may ask about the design of the experiment and how a hypothesis is tested, confirmed, or refuted.
Research Summary
200
How much time do you have to complete ACT Science?
35 minutes
200
You will probably need a calculator to answer some of the questions in ACT Science (even though you won't have access to one)
False. Any information you need is on the page or in the passage. Even if you need to use a scientific formula, you will not need a calculator for this test.
200
Based on Table 1, a cosmic ray flux of 440,000 (particles/m^2/hr) would correspond to a cover of low clouds that is closest to which of the following? 

F. 28.7% 

G. 29.0% 

H. 29.3% 

J. 29.6%

H. 29.3%
200
Which of the following variables was kept constant in Study 2 ? 

A. Site 

B. Monthly rainfall 

C. Wet deposition of Zn^2+ 

D. Wet deposition of Cl−

A. Site
300
These types of questions are typically seen as the easiest on ACT Science
Data Representation
300
ACT Science is made up of how many passages? (range)
6-7 passages
300
True/False: You do not need to know much Science knowledge to do well on this test. 90-95 percent of the questions are not based on content knowledge.
True! only 5-10 percent of ACT Science questions require you to know science knowledge that isn't written on the page. (For example, you may need to know what volume is, or the periodic symbol for iron.)
300
What trend can be seen between cosmic ray flux and cover of low clouds according to Table 1? 

A. As cosmic ray flux increases, cover of low clouds increases. 

B. As cosmic ray flux increases, cover of low clouds decreases. 

C. cover of low clouds remains the same no matter how much cosmic ray flux increases. 

D. There is not enough data to determine

A. As cosmic ray flux increases, cover of low clouds increases.
300
According to Study 3, as distance from the urban site increased, the annual wet deposition: 

A. increased for both Cu^2+ and Zn^2+ 

B. increased for Cu^2+ but decreased for Zn^2+ 

C. decreased for both Cu^2+ and Zn2+ 

D. remained the same for both Cu2+ and Zn^2+

C. decreased for both Cu^2+ and Zn2+
400
These types of questions are typically seen as the most difficult in ACT Science
Conflicting Viewpoints
400
Which of the following categories of science will not be included on the science portion of the ACT?

A. biology

B. chemistry

C. physics

D. astrology

E. earth/space science

D. astrology
400
True/False: If you're having a difficult time getting to all of the passages, you may consider skipping 1 or 2 of them all together.
True. Skipping one or two passages could give you a little extra time to spend on the other passages. Don't forget to still make guesses on skipped questions!
400
Which of the following accurately depicts the difference in monthly average cover of low clouds for January 1980 and January 1995? 

A. average cover of low clouds is higher in Jan 1980 than it is in Jan 1995. 

B. average cover of low clouds is lower in Jan 1980 that it is in Jan 1995. 

 C. There is no difference average in low cloud cover in Jan 1980 and 1995. 

D. There is not enough data to determine.

B. average cover of low clouds is lower in Jan 1980 that it is in Jan 1995. Physically mark the correct graph/table/chart/figure using your finger to make sure you're looking at the correct one while answer a question!
400
According to Figure 1, over the 12-month period, the monthly precipitation at the urban site was maximum in February and minimum in July. According to Figures 2 and 3, the wet deposition of which ion was also maximum in February and minimum in July? 

A. Cu^2+ 

B. Zn^2+ 

C. Cl− 

D. SO4^2-

D. SO4^2-
500
These questions/passages give several competing hypotheses. You will be asked to understand the hypotheses, both on their own and in relation to each other.
Conflicting Viewpoints
500
Which question type shows up the MOST on the Science ACT? 

Data Representation 

Research Summaries 

Conflicting Viewpoints

Research Summary questions make up 45%-55% of ACT Science test. (about 18-22 questions)
500
True/False: You should find the Conflicting Viewpoints passage FIRST and complete it at the very beginning of the testing time.
False! Conflicting Viewpoints passages and questions are more difficult and can be time consuming. You should skip the Conflicting Viewpoints passage and save it for last so that you have enough time to answer the easier questions.
500
Which types of clouds seem to follow a similar cover pattern? 

A. high clouds & low clouds 

B. high clouds & middle clouds 

C. middle clouds & low clouds 

D. not enough data to determine.

B. high clouds & middle clouds
500
Suppose there had been no precipitation during 1 entire month of the 12-month period. Based on the information provided, during that month there would have been: 

A. significant wet deposition of all 4 substances. 

B. significant wet deposition of Cu^2+ and Zn^2+, but no wet deposition of Cl− and SO4^2− 

C. no wet deposition of any of the 4 substances. 

D. no wet deposition of Cu2+ and Zn^2+, but significant wet deposition of Cl− and SO4^2−

C. no wet deposition of any of the 4 substances.