Transcript What is Science? Scientific Inquiry Scientific Inquiry QuickTime™ and a T IFF (Uncompressed) decompressor are needed to see t his picture. • The diverse ways.

What is Science?
Scientific Inquiry
Scientific Inquiry
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• The diverse ways in which scientists
study the natural world and propose
explanations based on the evidence
they gather.
Scientific Inquiry
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• The process of
finding answers to
problems by means
of asking questions.
• The first step in
getting the
scientific method
process started.
The SCIENTIFIC METHOD is a problem solving
method used to find answers to scientific questions.
There are 6 steps to the scientific method:
1. State the question/problem.
2. Collect information.
3. Make a hypothesis.
4. Perform an experiment.
5. Record and study data.
6. Draw a conclusion.
•Every good scientist knows that they must
REPEAT THEIR WORK in order to be sure that
the results of their experiment are precise
and accurate.
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•What scientific attitude must a scientist
possess in order to develop questions to study?
CURIOUSITY
Hypothesis
• A possible
explanation for a
set of observations
or answer to a
scientific question.
• An EDUCATED
guess.
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A hypothesis must be testable.
What does this mean?
Researchers must be able to carry out investigations
and gather evidence that will either support or
disprove the hypothesis.
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Independent/Manipulated Variable
• The one variable
that is purposely
changed to test
the hypothesis.
• Researcher is in
control of this
variable.
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Independent variable is on
the x-axis of a graph.
What was the independent
variable in the rose lab?
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The type of water in which the rose was placed.
(sugar, neutral, or salt)
Dependent/Responding Variable
Dependent Variable is found
on the y-axis.
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• The factor that may
change in response to
the manipulated
variable.
• Cannot be controlled
by the researcher.
What is the dependent
variable in the rose lab?
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The condition of the roses!
Controlled Experiment
• An experiment in which only one variable is
manipulated at a time.
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Was the rose lab a
controlled experiment?
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YES!!!!
Operational Definitions
• A statement that
describes how to
measure a
particular variable
or define a
particular term.
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Data
• Facts, figures, and
other evidence
gathered through
observations.
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• Can be displayed in
charts, tables, and
graphs.
Re-write the class data collected about
favorite candy bars.
Snickers
Milky Way
3 Musketeers
Hershey’s
Reese’s Peanut Butter Cup
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Communicating
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• The sharing of
ideas and
experimental
findings with
others through
writing and
speaking.
What are 3 ways scientists
can communicate with one
another?
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Scientific meetings
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Scientific journals
and articles
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Internet
Scientific Theory
• A well-tested explanation for a wide range
of observations.
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Modern Atomic Theory
Big Bang Theory
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Plate Tectonic Theory
Scientific Law
• A statement that describes what scientists
expect to happen every time under a particular set
of conditions.
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Newtons’ Laws of Motion
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Gravity
How do scientific theories
and scientific laws differ?
Unlike a theory, a scientific law
describes an observed pattern in
nature without attempting to explain
it!
See example of gravity on next slide…
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Are there any questions?
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