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.
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
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.
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
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.
C. = No, which means that further investigation is needed.
The correct answer is D. Ask a question about the natural world.
To arrive at this answer, you can refer to the steps of the scientific method. The scientific method is a systematic approach used by scientists to investigate and understand the natural world. It consists of several steps that are typically followed in a specific order.
The first step is asking a question about the natural world. Scientists begin by identifying a phenomenon, problem, or curiosity that they want to explore further. This question should be specific and clearly defined to guide the research process.
Options A, B, and C are not the first step in the scientific method. While they are all important components of the scientific process, they come after the initial step of asking a question. Option A, creating a model, is a step that may come later in the process to represent or simulate the phenomenon being studied. Option B, collecting empirical evidence, is an important step in gathering data to support or refute the hypothesis. Option C, developing a testable hypothesis, is a subsequent step that follows the initial question and involves formulating educated guesses or explanations for the observed phenomenon.