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WorksheetsExperimental Design - Medical Detectives
Total questions: 27
Worksheet time: 14mins
What is a good example of a research question in an experiment about exercise and respiratory rate?
Does performing jumping jacks for two minutes increase respiratory rate?
What is the color of the sky?
How many students are in the class?
What is your favorite food?
What is the hypothesis for the experiment: 'Does performing jumping jacks for two minutes increase respiratory rate?'
Performing jumping jacks for two minutes will increase respiratory rate.
Performing jumping jacks for two minutes will decrease respiratory rate.
Performing jumping jacks for two minutes will have no effect on respiratory rate.
Performing jumping jacks for two minutes will decrease heart rate.
In an experiment, which variable is changed by the person conducting the experiment?
Dependent variable
Independent variable
Control variable
Constant variable
What is the dependent variable?
The variable you change in an experiment
The measurable effect or response that happens when you change the independent variable
The equipment used in an experiment
The hypothesis of the experiment
In the example experiment, what is the independent variable? Fill in the blank.
Performing jumping jacks for two minutes
Measuring heart rate after exercise
Recording the time of day
Observing the weather conditions
In the example experiment, what is the dependent variable? Fill in the blank.
Respiratory rate
Temperature
Light intensity
Time
List the material necessary for the example experiment. Fill in the blank.
Stopwatch
Paintbrush
Notebook
Thermometer
What is the safety concern for the example experiment? Fill in the blank.
Only people in good health, with no respiratory problems, should complete this experiment.
Wear sunglasses at all times during the experiment.
Do not use any electronic devices near the experiment.
Only perform the experiment outdoors on a sunny day.
What is the control for the example experiment? Fill in the blank.
The respiratory rate of the test subjects before they perform jumping jacks.
The number of jumping jacks performed by the test subjects.
The time of day the experiment is conducted.
The amount of water consumed by the test subjects after the experiment.
Why is it important to include multiple trials in an experiment?
To make the experiment more fun
To ensure results are not due to chance
To save time
To use more materials
According to the procedure, the step to take immediately after the participant performs jumping jacks for 2 minutes is:
Record the participant's heart rate.
Have the participant rest for 5 minutes.
Start a new exercise immediately.
Give the participant water.
Fill in the blank in the data table: Record the respiratory rate (RR) before exercise for Trial 1 (bpm).
[Student should record the measured RR before exercise for Trial 1]
12 bpm
30 bpm
5 bpm
Fill in the blank in the data table: Record the respiratory rate (RR) after exercise for Trial 3 (bpm).
[Student should record the measured RR after exercise for Trial 3]
12 bpm
20 bpm
8 bpm
The trends or patterns observed in your data are:
The recurring themes or changes identified in the data.
The sources of the data collected.
The tools used for data analysis.
The time taken to collect the data.
Which of the following best describes what you should include when stating your conclusion and writing a summary for an experiment?
A clear statement about whether your results support your hypothesis, with evidence to support your response.
A list of all the materials used in the experiment, with no mention of results.
A description of the steps taken during the experiment, without discussing the hypothesis.
A summary of unrelated experiments to provide background information.
Scientists may complete these steps in order, or they may find that they have to return to previous steps before they can make a conclusion. One thing scientists may do is ______ their hypothesis.
change
ignore
publish
forget
Scientists may complete these steps in order, or they may find that they have to return to previous steps before they can make a conclusion. One thing scientists may do is redesign the procedure because of ______ flaws.
design
chemical
weather
timing
Scientists may complete these steps in order, or they may find that they have to return to previous steps before they can make a conclusion. One thing scientists may do is develop new ______ based on the work in this experiment.
questions
answers
chemicals
machines
Scientists may complete these steps in order, or they may find that they have to return to previous steps before they can make a conclusion. One thing scientists may do is move on to a new or related ______ topic.
research
cooking
sports
fashion
an educated guess about something that was observed; often an 'if' and 'then' statement
Theory
Hypothesis
Independent Variable
Dependent Variable
A students was doing an experiment using the scientific method. Every three days the student plans to count the green leaves. Which would be a good hypothesis for this experiment?
If plants are placed in direct sunlight, then they will grow more green leaves.
If plants are places in bright light, then they will grow more green leaves than in dim light.
If plants are place in clay pots, then they will grow more green leaves than plastic pots.
If plants are in warmer temperatures, then they will grow more green leaves.
The information you record in an experiment is called your ____________.
data
conclusions
notebook
inquiry
The measurements and other observations.
data
details
specifics
statement
