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WorksheetsScientific Method and Variables
Total questions: 15
Worksheet time: 15mins
How many variables can be tested in a controlled experiment?
one
two
three
as many as possible
What step does every scientific experiment begin with?
hypothesis
question/problem
procedures
conclusion
Why do we want to test one variable at a time?
Because it is hard to setup a data table with more
To know what is causing the changes
It is what has always been done
No one really knows
Squidward found new reeds to tryout for his clarinet. He used an APPLAUSOMETER to measure applause after playing Under the Sea with each reed. The results were put in the table.
What was the independent variable?
The Song
The Reed
The Applause
Which variable do you change in an experiment?
Dependent
Independent
According to the diagram, which question is being tested?
How does the amount of water affect flowering plants growth?
How does salt water affect flowering plant's growth?
How does adding fertilizer to flowering plants affect growth?
Which type of fertilizer affects plant growth to grow tallest?
Variable that the scientist keeps CONSTANT or the SAME.
Control Variable
Variable
Dependent Variable
Independent Variable
Testing a hypothesis often involves a(n):
answer
experiment
problem
safety check
What starts the scientific method?
question
hypothesis
analysis
conclusion
Which variable do you measure?
Independent
Dependent
This is the step of the scientific method where you record OBSERVATIONS in a DATA TABLE, and then make a GRAPH.
Hypothesis
Data/Results
Procedure
Conclusion
Which is NOT a step in the scientific method?
Make observation
Form a theory
Collect data
Form a hypothesis
Why do scientists use the scientific method?
To make sure they get credit for their discoveries.
To make sure their results are valid and can be performed by other scientists.
So that other scientist don't get mad at them
What is the primary purpose of a control variable in an experiment?
To change the outcome of the experiment
To remain constant and provide a baseline for comparison
To be the main focus of the experiment
To be manipulated to observe effects
In an experiment to test the effect of sunlight on plant growth, what is the independent variable?
Amount of water given to the plants
Type of soil used
Amount of sunlight received
Height of the plants
