What is the first step in the scientific method?(1 point)
A. = Create a model
B. = Collect empirical evidence.
C. = Develop a testable hypothesis.
D. = Ask a question about the natural world.
A. = Create a model
B. = Collect empirical evidence.
C. = Develop a testable hypothesis.
D. = Ask a question about the natural world.
Answers
Which term or phrase represents a proposed answer to a scientific question?(1 point)
Responses
A. = direct observation
B. = empirical evidence
C. = hypothesis
D. = model
Responses
A. = direct observation
B. = empirical evidence
C. = hypothesis
D. = model
A scientist wants to drop a bouncy ball from a height of one meter and determine how many times the ball will bounce before coming to rest. Which option below is an example of a hypothesis for this test?(1 point)
Responses
A. = If a bouncy ball is dropped from a height of one meter, then it will bounce one hundred times before coming to rest.
B. = If a bouncy ball is dropped from a height of one meter, it will bounce before coming to rest.
C. = If a bouncy ball is dropped, it will bounce one hundred times before coming to rest.
D. = If a bouncy ball is dropped and data is collected, the data will show that the ball will bounce one hundred times before coming to rest.
Responses
A. = If a bouncy ball is dropped from a height of one meter, then it will bounce one hundred times before coming to rest.
B. = If a bouncy ball is dropped from a height of one meter, it will bounce before coming to rest.
C. = If a bouncy ball is dropped, it will bounce one hundred times before coming to rest.
D. = If a bouncy ball is dropped and data is collected, the data will show that the ball will bounce one hundred times before coming to rest.
Why are repeated trials necessary when conducting an experiment?
(1 point)
Responses
A. = to make sure that results are consistent
B. = to see if other people are interested in the same thing
C. = to let other people help you with the experiment
D. = to get a variety of different answers
(1 point)
Responses
A. = to make sure that results are consistent
B. = to see if other people are interested in the same thing
C. = to let other people help you with the experiment
D. = to get a variety of different answers
Use the table to answer the question.
Temperature (°C
)
Trial 1
Amount of Water Consumed (ml)
Trial 2
Amount of Water Consumed (ml)
Trial 3
Amount of Water Consumed (ml)
0 62 65 64
10 63 66 66
15 71 73 72
15 75 77 77
Are the differences between the results of each trial significant?
(1 point)
Responses
A. = Yes, which means the results are reliable.
B. = Yes, which means that further investigation is needed.
C. =No, which means that further investigation is needed.
D. = No, which means that the results are reliable.
Temperature (°C
)
Trial 1
Amount of Water Consumed (ml)
Trial 2
Amount of Water Consumed (ml)
Trial 3
Amount of Water Consumed (ml)
0 62 65 64
10 63 66 66
15 71 73 72
15 75 77 77
Are the differences between the results of each trial significant?
(1 point)
Responses
A. = Yes, which means the results are reliable.
B. = Yes, which means that further investigation is needed.
C. =No, which means that further investigation is needed.
D. = No, which means that the results are reliable.
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