ATI TEAS Guide To Science | Scientific Method Question Review
ATI TEAS Science The Scientific Method
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Quiz for ATI TEAS SCIENCE REVIEW SERIES
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Question 1 of 8
1. Question
Which of the following tools would be most appropriate to measure the mass of a human liver?
Correct
The most appropriate tool to measure the mass of a human liver is a balance scale.
Incorrect
The most appropriate tool to measure the mass of a human liver is a balance scale.
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Question 2 of 8
2. Question
Which of the following reflects the correct order of steps in the scientific method?
Correct
The correct order of steps in the scientific method is as follows: identify a problem, ask questions about the problem, form a hypothesis, gather data or conduct and experiment, analyze the data, and draw a conclusion.
Incorrect
The correct order of steps in the scientific method is as follows: identify a problem, ask questions about the problem, form a hypothesis, gather data or conduct and experiment, analyze the data, and draw a conclusion.
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Question 3 of 8
3. Question
Scientists conduct an experiment to assess the effect of a certain substance, Substance A, on bacterial cell division. One group of bacteria is exposed to Substance A at regular intervals over a period of 10 days. A second group of bacteria receives no exposure to Substance A.
Which of the following is the dependent variable in this study?
Correct
In this experiment, bacterial cell division is the dependent variable under study. Substance A is the independent variable. The scientists are assessing the effect that Substance A has on bacterial cell division, so Substance A is the “cause” in this instance. Bacterial cell division is the “outcome” or “effect.”
Incorrect
In this experiment, bacterial cell division is the dependent variable under study. Substance A is the independent variable. The scientists are assessing the effect that Substance A has on bacterial cell division, so Substance A is the “cause” in this instance. Bacterial cell division is the “outcome” or “effect.”
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Question 4 of 8
4. Question
A scientist concluded that decreasing the birth order results in an increasing weight at birth.
Which of the following statements accurately describes the relationship between birth order and weight at birth?
Correct
The study shows that as the birth order increases, the birth weight decrease. Therefore, the two factors are inversely correlated. Another way to say this would be to say that they show indirect variation, or that birth order varies indirectly with birth weight.
Incorrect
The study shows that as the birth order increases, the birth weight decrease. Therefore, the two factors are inversely correlated. Another way to say this would be to say that they show indirect variation, or that birth order varies indirectly with birth weight.
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Question 5 of 8
5. Question
Which of the following is the most appropriate unit to measure the length of a standard basketball court?
Correct
The most appropriate unit to measure the length of a standard basketball court is in yards. Millimeters and kilometers also measure length, but the scale of a basketball court is too large for millimeters and too small for kilometers.
Incorrect
The most appropriate unit to measure the length of a standard basketball court is in yards. Millimeters and kilometers also measure length, but the scale of a basketball court is too large for millimeters and too small for kilometers.
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Question 6 of 8
6. Question
A scientist concluded that increasing the temperature results in an increasing number of blooms on a given flower.
Which of the following correctly identifies one problem with this conclusion?
Correct
The scientist concluded that continuing to increase temperature would continue to increase the number of blooms. The data only shows the number of blooms increasing over a certain range of temperature, so the scientist’s conclusion is not supported.
Incorrect
The scientist concluded that continuing to increase temperature would continue to increase the number of blooms. The data only shows the number of blooms increasing over a certain range of temperature, so the scientist’s conclusion is not supported.
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Question 7 of 8
7. Question
Which of the following provides an example of inductive reasoning?
Correct
The argument in choice B is an example of inductive reasoning. It starts with a statement regarding specific observations: All of the gorillas observed in the zoo have brown hair. It then draws a general conclusion: Therefore, all gorillas have brown hair. Only certain gorillas have been observed–the ones in the zoo–but the conclusion refers to all gorillas in general. Choices A, C, and D are all examples of deductive reasoning.
Incorrect
The argument in choice B is an example of inductive reasoning. It starts with a statement regarding specific observations: All of the gorillas observed in the zoo have brown hair. It then draws a general conclusion: Therefore, all gorillas have brown hair. Only certain gorillas have been observed–the ones in the zoo–but the conclusion refers to all gorillas in general. Choices A, C, and D are all examples of deductive reasoning.
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Question 8 of 8
8. Question
A study is conducted to determine the effect of aspirin on heart attack risk. Study participants are divided into two groups. Participants in the first group are given a low dose of aspirin daily, while participants in the second group receive no aspirin.
Which of the following describes the first group?
Correct
The first group is the treatment group, or experimental group. Participants in the first group receive a dose of aspirin, which is the independent variable under study. The second group is the control group, because participants in this group do not receive the factor under study.
Incorrect
The first group is the treatment group, or experimental group. Participants in the first group receive a dose of aspirin, which is the independent variable under study. The second group is the control group, because participants in this group do not receive the factor under study.