Transcript Scientific Method

Scientific Method
What is it?
How do we use it?
Scientific Method
 The
basic steps used by scientist in
solving problems and uncovering
facts.
Steps of the Scientific Method
Step 1: Identify the problem
- What question are you trying to find an
answer to? In the form of a question.
Ex. Why do Joshua Trees not grow closer to
Vegas?
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Steps of the Scientific Method
Step 2- Gather Information
- Look up information at the library or ask an
expert. Think about the experiences that
you have had that will help you find the
answer.
Ex. Climate, laws, etc.
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Steps of the Scientific Method
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Step 3- state a hypothesis
What do you think the answer to the
problem might be?
Ex. Do Joshua Trees only grow at certain
elevations?
Steps of the Scientific Method
Step 4- Do an EXPERIMENT.
- In order to find the answer to a problem,
scientists do an experiment. NOTE: only
one thing at a time can be changed in an
experiment.
Ex. Grow a Joshua Tree in an environment
with a lot of water and one with out.
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Steps of the Scientific Method
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The Variable is the thing that is changed
in an experiment. All of the groups are the
same in the experiment except for this.
Independent Variable- This is the thing
that you change. (X axis)
Steps of the Scientific Method
Dependent Variable- This is the thing that
changes in response to what you
changed. (Y axis)
Control- variables in the experiment that do
not change. They are kept the same in
every part of the experiment.
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Steps of the Scientific Method
Step 5- RECORD the results that you got
from your experiment.
- Collect DATA. Data is defined as recorded
observations and measurements. Usually
a chart or a graph is used to display data
from an experiment.
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Steps of the Scientific Method
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Step 6-State your conclusion
Your conclusion is based on the results of
the data you collected about your
experiment. Your conclusion tells you
whether or not your hypothesis is right or
wrong.
Steps of the Scientific Method
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Step 7- Retest
If results do not support your hypothesis
then retest your experiment using a
different variable.