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WorksheetsScientific Method & Identifying Variables
Total questions: 46
Worksheet time: 56mins
How many variables should be tested in a controlled experiment?
one
two
three
as many as possible
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music.
In this investigation, what is the independent variable?
Type of plant
Water, apple juice, milk
Plant growth
Soil types
Mr. S normally uses praise as a reward to train his dog. He wants to know the best way to train his dog, so he sets up an experiment to find out if there is a better way to get his dog to respond to commands.
What is his independent variable?
Type of reward
Praise
Walking
Amount of time the dog follows commands
Mr. Z. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp.
Identify the constant.
distance traveled by the ball
height of the ramp
mass of the ball
weight of the ball
This group in an experiment that is not tested on.
Independent variable
Dependent variable
Control group
constant
Tiffany was investigating how fast it took Hayden to react to different sounds. Identify the dependent variable.
different sounds
how much time it took Hayden to react
Hayden
the trumpet playing over and over
What is the dependent variable? Plant growth may be affected by the color of the light.
plant growth
water amount
fertilizer
color of light
What is the independent variable? Does T.V. time affect the reading scores of 4th graders?
T.V time
reading scores
grade of student
time outside
True or False
The format for a hypothesis is If ..... then.....
True
False
What is the dependent variable? Lemon trees receiving the most water produced the most lemons.
amount of water
type of soil
number of lemons
location
Independent Variable is Air Pollution
Dependent Variable is health of birds
A possible hypothesis would be ______.
If the health of birds then the air pollution
If Air Pollution is increased then the health of birds will decrease
Does pollution help birds?
If birds health gets better then air pollution got worse
It is thought that chocolate causes acne. A possible hypothesis for chocolate and pimples would be _______.
Does the amount of chocolate affect the number of pimples?
If more chocolate is eaten then there will be more pimples.
If you have more pimples then you will eat chocolate.
number of pimples
Does the amount of time spent studying affect the grade on the assessment?
The independent variable for time studying and grade on assessment would be ____.
time studying
If the time spent studying increases then the grade on the assessment will increase.
The location you study
The grade on the assessment
Does the amount of time spent studying affect the grade on the assessment?
The dependent variable for time studying and grade on assessment would be ____.
time studying
If the time spent studying increases then the grade on the assessment will increase.
The location you study
The grade on the assessment
Does the amount of time spent studying affect the grade on the assessment?
A control for time studying and grade on assessment would be ____.
time studying
If the time spent studying increases then the grade on the assessment will increase.
The location you study
The grade on the assessment
The height of bean plants depends on the amount of water they receive.
The height of bean plants depends on the amount of water they receive.
The height of bean plants depends on the amount of water they receive.
"Which type of medium is best for plant growth?"
"Does eating breakfast improve test score?"
"Do tall people jump further than short people?"
"Which type of metal, copper or aluminum, conducts heat faster?"
"Is Bounty paper towel more absorbent than sparkle paper towel?
A test company wants to see whether having a special study program such as SAT prep will help increase test score. What is the "experimental group" in this experiment?
the usual study program
special study program
What is another name for an "educated guess?"
Question
Hypothesis
Experiment
Conclusion
What is the last step of the scientific method?
Question
Conclusion
Experiment
Results
What is the step in the scientific method where you gather information about the problem?
conclusion
problem
research
hypothesis
What is the step in the scientific method where you write a question to state what you are trying to figure out?
conclusion
problem
research
hypothesis
What part of the scientific method is where you list the step by step instructions needed to complete your experiment?
conclusion
hypothesis
materials
procedures
Which step of the scientific method is prediction of the experiment outcome based on sound reasoning?
conclusion
hypothesis
materials
procedures
This step is written as a "if...then...because" statement
hypothesis
conclusion
results
procedure
The information gathered from an experiment
procedures
hypothesis
data
problem
Testing a hypothesis involves a(n):
answer
experiment
problem
safety check
conclusion
What are the correct steps in the scientific method?
Research, conclusion, hypothesis, experiment, analyze, collect data
Observe, research, hypothesis, experiment, collect data, analyze, conclusion
Observe, research, experiment, analyze data, conclusion
Hypothesis, experiment, observe, collect data, conclusion
