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Practice Quizzes
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1
In the context of science, how would you classify the following statement? Iridium is present in relatively high concentrations in 65 million year old rock layers in several different locations on Earth.
A)Theory
B)Hypothesis
C)Observation
2
Suppose you measure the flow of water from a drinking fountain 10 times and all your measurements agree very closely to one another, but differ significantly from the accepted flow value. Which of the following statements best describes your empirical data?
A)They are accurate but not precise
B)They are precise but not accurate
C)They are not accurate or precise
3
During orientation you learn that all classrooms on campus are air conditioned. You decide to bring a sweatshirt to class even on the hottest days. What type of reasoning did you use?
A)Inductive
B)Deductive
C)Neither – the decision did not involve science
4
Which statement best describes science?
A)Science is a large body of factual knowledge
B)Science is the process of discovery
C)Science is the quest for ultimate truth
5
Which of the following is not a characteristic of scientific explanations?
A)They are tentative
B)They are able to answer all questions
C)They are limited by technology
D)They are based on empirical observations
6
The space shuttle Discovery disintegrated upon entering the atmosphere in February 2003 because of damage to a wing. Why did this happen?
A)A lightning strike hit the wing during ascent
B)Insulating foam hit the wing on takeoff
C)The shuttle collided with a small meteorite
7
Which method of science reasoning uses specific observations to draw general conclusions?
A)Inductive
B)Deductive
C)Logical
8
Which process of a scientifically enlightened citizen deals with being aware that other's actions on Earth affect us and we affect others?
A)Know
B)Care
C)Act
9
Which role of earth scientists most directly relates to forecasting hurricane paths?
A)Finding and sustaining earth resources
B)Protecting the health of the environment
C)Ensuring the future of human life
D)Protecting against natural hazards
10
Scientific results are unpredictable and are mainly determined by the personal views of the scientists.
A)True
B)False
11
Once a scientific explanation has been established it never needs to be changed.
A)True
B)False
12
Which of the following statements does not describe some aspect of scientific investigation?
A)observing that much of the water along the beach is no longer where it should be?
B)reasoning that fair weather conditions do not normally result in rapid drops in ocean levels so something extraordinary is occurring
C)hypothesizing that the water would likely come back in as fast as it went out.
D)concluding that this rising water process had to do with sinking land levels rather than rising water levels
E)all of the above describe some aspect of scientific reasoning.
13
Consider the following statement and choose which response best applies to it.
"Over the last two centuries, there has been a marked decrease in the number of pirates in the world at the same time that global temperatures are rising. Therefore, the lack of pirates must be linked to global warming."
A)This is an example of attacking the scientists doing the research, rather than the science
B)This is an example of flawed cause and effect reasoning
C)This is an example of poor statistics, as the population size covers only 200 years of data
D)This is an example of arguing a point on the basis of authority
E)All of the above apply to the statement concerning pirates and global warming
14
If you were asked to describe some of the useful things that earth scientists might be involved in, which of the following would not be applicable?
A)Helping the public understand which areas and populations might be susceptible to earthquakes
B)Trying to understand what causes flooding so it can be prevented
C)Trying to predict when natural hazards might occur by using secret methods.
D)Trying to predict the weather so farmers might know when to plant crops
E)All of the above are applicable to earth scientists.





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