WGU D483 VIRTUAL LAB
SUPPLEMENTARY INSTRUCTIONS
UPDATED ACTUAL EXAM QUESTIONS AND
CORRECT ANSWERS
●● When determining the scope of an experiment, you need to consider:
Answer: the outcome you will investigate
the factor that will vary.
When determining how to test a hypothesis, you need to understand
what outcome you are testing for; for example, in the pillbug
experiment, you were testing to see if the pillbug would choose the
chamber with the cornstarch. You also need to know what factors will
vary; again, with the pillbug experiment, the variables were the
cornstarch and the sand. Knowing the pillbugs weren't repelled from the
sand you could surmise the movement to the cornstarch vs sand was
caused by wanting to go into that chamber and not because they were
repelled by the sand in the opposing chamber.
●● Select all of the following that are required of a scientific result.
Answer: It must be open to revision in the light of new data.
It has been tested using the scientific method.
,●● Select all of the following that are characteristics of a scientific
result.
Answer: reproducible, systematic
●● Match the action to the appropriate phase of the scientific method
1 document results
2carry out the strategy, collect measurements
3 formulate a hypothesis and create a strategy
4 draw graphs, evaluate the hypothesis
Answer: hypothesis 3
experiment 2
analysis 4
report 1
- The scientific method starts with a hypothesis and an idea of how to
test that hypothesis. During the experiment, you could carry out the
formed strategy and collect measurements/data. In analysis, data is
examined, and graphs can be used for a visual representation of the
findings. Documenting the results would occur when you report your
findings.
,●● Suppose you study how speed affects the braking distance of a car.
Match each part of the hypothesis phase with its output.
1 Formulate the hypothesis
2 Choose a scope
3 Make a strategy for testing the hypothesis
Answer: speed." 1
"We will focus on how braking distance depends on speed." 2
"We will brake at various speeds but keep the car and other factors
constant." 3
●● When utilizing the scientific method, there are two types of
variables. They are
Answer: dependent and independent.
●● When graphing your data, it is important that you
Answer: place the independent variable on the X-axis.
●● When graphing your data, it is important to
Answer: place the dependent variable on the Y-axis.
●● In the pillbug experiment, your hypothesis
, Answer: was related to the environment pillbugs prefer
●● n the pillbug experiment, the substance used as the control was
Answer: sand
●● In the pillbug experiment, an important part of the experimental
strategy was to
Answer: make observations at regular intervals.
In order to have enough data to graph and draw conclusions, it is
important that you take several measurements at regular intervals
throughout the experiment.
●● According to the results of the pillbug experiment,
Answer: pillbugs tend to prefer cornstarch over sand.
●● In the pillbug experiment, how many pillbugs did you need to use to
get good information for the experiment?
Answer: 10
●● Imagine that you wish to compare two different diets that will be fed
to tadpoles raised in a lab. One diet is a meat-based fish food, and the
other is the traditional diet of boiled lettuce. You want to see if the meat-
based diet will be associated with an increase in the average weight of
SUPPLEMENTARY INSTRUCTIONS
UPDATED ACTUAL EXAM QUESTIONS AND
CORRECT ANSWERS
●● When determining the scope of an experiment, you need to consider:
Answer: the outcome you will investigate
the factor that will vary.
When determining how to test a hypothesis, you need to understand
what outcome you are testing for; for example, in the pillbug
experiment, you were testing to see if the pillbug would choose the
chamber with the cornstarch. You also need to know what factors will
vary; again, with the pillbug experiment, the variables were the
cornstarch and the sand. Knowing the pillbugs weren't repelled from the
sand you could surmise the movement to the cornstarch vs sand was
caused by wanting to go into that chamber and not because they were
repelled by the sand in the opposing chamber.
●● Select all of the following that are required of a scientific result.
Answer: It must be open to revision in the light of new data.
It has been tested using the scientific method.
,●● Select all of the following that are characteristics of a scientific
result.
Answer: reproducible, systematic
●● Match the action to the appropriate phase of the scientific method
1 document results
2carry out the strategy, collect measurements
3 formulate a hypothesis and create a strategy
4 draw graphs, evaluate the hypothesis
Answer: hypothesis 3
experiment 2
analysis 4
report 1
- The scientific method starts with a hypothesis and an idea of how to
test that hypothesis. During the experiment, you could carry out the
formed strategy and collect measurements/data. In analysis, data is
examined, and graphs can be used for a visual representation of the
findings. Documenting the results would occur when you report your
findings.
,●● Suppose you study how speed affects the braking distance of a car.
Match each part of the hypothesis phase with its output.
1 Formulate the hypothesis
2 Choose a scope
3 Make a strategy for testing the hypothesis
Answer: speed." 1
"We will focus on how braking distance depends on speed." 2
"We will brake at various speeds but keep the car and other factors
constant." 3
●● When utilizing the scientific method, there are two types of
variables. They are
Answer: dependent and independent.
●● When graphing your data, it is important that you
Answer: place the independent variable on the X-axis.
●● When graphing your data, it is important to
Answer: place the dependent variable on the Y-axis.
●● In the pillbug experiment, your hypothesis
, Answer: was related to the environment pillbugs prefer
●● n the pillbug experiment, the substance used as the control was
Answer: sand
●● In the pillbug experiment, an important part of the experimental
strategy was to
Answer: make observations at regular intervals.
In order to have enough data to graph and draw conclusions, it is
important that you take several measurements at regular intervals
throughout the experiment.
●● According to the results of the pillbug experiment,
Answer: pillbugs tend to prefer cornstarch over sand.
●● In the pillbug experiment, how many pillbugs did you need to use to
get good information for the experiment?
Answer: 10
●● Imagine that you wish to compare two different diets that will be fed
to tadpoles raised in a lab. One diet is a meat-based fish food, and the
other is the traditional diet of boiled lettuce. You want to see if the meat-
based diet will be associated with an increase in the average weight of
