
Unit 1 Lesson 1: Scientific Methods
Presentation
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Science
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9th Grade
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Practice Problem
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Easy
+15
Standards-aligned
James Pickert
Used 4+ times
FREE Resource
25 Slides • 8 Questions
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Multiple Choice
Careful studying of what happened during the experiment - using your five senses (when safe).
problem
hypothesis
experiment
observation
conclusion
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Open Ended
Some people suffer from hair loss as they age. Scientists are designing an experiment that will test the effects of Rogaine (a type of medicine) on hair growth. State a possible hypothesis for this experiment.
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Open Ended
During the summer months, some people complain about excessive sweat. Scientists are conducting an experiment on the effect of high temperatures on the amount of sweat produced. State a possible hypothesis for this experiment.
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Multiple Choice
The one variable that I am changing in the experiment.
dependent variable
independent variable
constants
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Multiple Choice
The things that need to be kept THE SAME for each trial.
dependent variable
independent variable
constants
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Multiple Choice
In the example on the previous slide, the different routes to school that you test would be the...
Dependent Variable
Independent Variable
Control
Constant
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Multiple Choice
The time it takes to walk each route to school would be the...
Dependent Variable
Independent Variable
Control
Constant
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Multiple Choice
To make sure our results are consistent, we want to use the same walker to test every route. This walker would be considered a...
Dependent Variable
Independent Variable
Control
Constant
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(descriptive qualities)
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Developing a Theory
●Once a hypothesis has been supported in repeated experiments, scientists
can begin to develop a theory, A scientific theory is a well-tested explanation
for a set of observations or experimental results.
Theories will try and explain why something happens.
Scientific Laws
●After repeated observation or experiments, scientists may arrive at a scientific
law. A scientific law is a statement that summarizes a pattern found in
nature.
●A scientific law describes an observed pattern in nature without attempting to explain it. It provides the "what" withoutnecessarily providing the "why".
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