Scientific Method
Lesson 2
Scientist _________________________________
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Do Now
https://www.youtube.com/watch?v=hKoB0MHVBvM
• In one sentence, summarize the video.
• What idea is being put forth in the video?
• If you could ask the two Scientist a question,
What would it be?
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Essential Question
• How can the scientific method be used to answer
testable questions?
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Vocabulary
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Scientific method
testable question
non-testable question
hypothesis
variable
control group
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Pretest:
• What are the steps to the scientific method.
• List them below.
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Steps of the Scientific Method
1. State the problem in the form of a testable
question.
2. Research and gather information.
3. Form a hypothesis.
4. Perform an experiment.
5. Collect and analyze data.
6. Draw conclusions.
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What is the scientific method?
1. It is a __________ __________ scientists use
to conduct an __________.
2. It is a way to __________ & __________
scientific questions by __________ questions
& conducting __________.
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1. __________ / __________
1. State the __________ in the form of a
testable question.
2. Ask a __________ about something
__________ .
– Why?
– How?
– What?
3. Develop a question that is __________ or that
can be __________ .
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What is a “__________ __________ ?”
1. A testable question is one that can be answerer by
__________ and __________ an experiment.
2. Testable questions are always about changing
__________ __________ to see what the effect is
on __________ __________ .
Testable Question Formats
independent
variable
dependent
variable
• Does changing _______ affect _______?
independent
variable
dependent
variable
• How does changing _____ affect _____?
independent
variable
dependent
variable
• If I change ______ will it affect ______?
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__________
1. A __________ is something that can __________ .
2. __________ Variable: The variable that will
changed by you- the scientist. A good experiment
only has one independent variable.
3. __________ Variable: The variable that is being
__________ in your experiment. The __________
or __________ to the change you make using the
independent variable.
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Example: Does changing the height of the ramp
affect the speed of the car going down the ramp?
What is the independent variable?
Does changing the __________ of the ramp
affect the speed of the car going down the
ramp?
What is the dependent variable?
Does changing the height of the ramp affect the
__________ of the car going down the ramp?
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Another Testable Question
• Does changing the amount of light affect
the growth rate of plants?
Identify the INDEPENDENT variable
Identify the DEPENDENT variable
__________ __________
__________ __________
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Is this a Testable Question? Why or Why not?
What makes plants grow best?
How to Turn a General Question
into a Testable Question
1. Think of a __________ and an __________ related to your
question.
2. In this case, the idea is that you can change something to
affect something about how a plant grows.
3. __________ are all the __________ in your experiment that
you want to remain __________ .
“What is the effect of soil type on plant height?”
Controls for the plant experiment:
type of plant
growing conditions (sunlight, temperature, etc.)
amount of water
type of container
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2. __________ / __________
__________
• Make __________ .
• Find out as much as you can about the
__________ .
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3. __________
1. __________ __________ about how things
work.
2. __________ that can be __________ in an
experiment.
3. Use If, then statements
– If ____ [I do this], then _____ [this will happen]
IMPORTANT- Focus on __________ variable only.
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4. __________
1. A carefully designed __________ to test
your hypothesis.
2. Change only one __________ at a time.
3. Use a __________ or control group. One group
must not be changed.
4. In order for results to be __________ , conduct
__________ tests.
5. Carefully collect observations and __________
your data in a __________ table.
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5. Experiment
• __________ __________ .
–
–
–
–
Numerical (__________ ) data organized in rows and columns
The specific independent variables are listed
The number of trials are listed
Blanks are left for the data (dependent variable) to be filled in
Trial
Variable 1
Variable 2
Variable 3
1
2
3
4
5
6
AVERAGE
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5. __________ and __________
__________
1. What can your data tell you?
2. __________ __________ or __________
a. Graph the data to look for __________ &
__________ .
3. Use the __________ and the mean to
compare data between two groups.
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6. __________
1. __________ of your experiment.
2. Use your data analysis to decide if your
observations either __________ or do not support
your __________ .
3. If your data does not support your hypothesis, give
possible __________ to explain this.
4. How could you __________ your experiment with
what you have learned? How could you
__________ your experiment?
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Discuss
• With a shoulder partner, discuss why scientists
use the scientific method.
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Scientific Method Song
• https://www.youtube.com/watch?v=T8427L0
Wry0
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Scienitfic Method
Important Ideas
1.
Why are these ideas important?
2.
2.
3.
3.
Which idea is relevant for today?
Which idea (from above) interests you the
most and why?
1.
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Partner Work
• Bikini Bottom Experiment
• ..\2015 design process\Bikinibttmlab
studentpkt-1.pdf
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Performance Task
You have just been hired by DSL Digital Poster
Company to design and create a Digital Poster
for the scientific method. Your Digital Poster
must include certain components outlined by
the company’s CEO, CEO Lantzy. Using the online
program Glogster, you will be able to showcase
your poster making talents and demonstrate
your understanding of the scientific method.
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Glogster
• Glogster: Create and Explore Educational
Content Online
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Digital Poster Rubric
• Digital Poster Rubric.docx
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Summarization Activity
IN YOUR OWN WORD
• Describe to a neighbor in your own words how the scientific
method can be used to answer a testable question. Write a
summary or your discussion below.
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Scientific Method Quiz
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