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.
9 answers
D. = Ask a question about the natural world.
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
C. = hypothesis
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.
A. = If a bouncy ball is dropped from a height of one meter, then it 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
A. = to make sure that results are consistent
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.
C. = No, which means that further investigation is needed.
12 answers