What is Chemistry? - PC\|MACimages.pcmac.org/SiSFiles/Schools/SC/Georgetown/WaccamawHigh... · What...
Transcript of What is Chemistry? - PC\|MACimages.pcmac.org/SiSFiles/Schools/SC/Georgetown/WaccamawHigh... · What...
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What is Chemistry?
1. What do you think?
2. Chemistry is the study of the composition, structure, and properties of matter and the changes matter undergoes.
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Chemistry
Plant
Sciences
Geology
Environmental
Science
Health and
Medicine Nuclear Chemistry
Physics
Astronomy
Biochemistry
Biology
Terrestrial
and Marine
Chemistry is the “The Central Science”
Ecology
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http://htwins.net/scale2/
What does this mean?
Your thinking of your world must develop
from the macro stage to the micro stage.
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6 Branches of Chemistry
• Organic chemistry
– study of the
element carbon and
compounds that
contain carbon
• Inorganic chemistry
– the study of
substances not
containing carbon
• Physical chemistry – the study of properties of matter and energy
• Analytical chemistry-
identification of chemicals
• Biochemistry – study
of composition and
changes in living species
• Theoretical chemistry
– computer modeling
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THE SCIENTIFIC METHOD
These accidents occur and
discoveries made from them
because of the WAY we do
science using the ....
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The 6 STEPS are…
1.State the purpose
of the experiment
Ask why.
What do you want
to know?
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2. Gather
background
information…
Research and
learn what has
already been
determined.
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For this class, just make an
If / then…statement
3. Form a
hypothesis…
a testable,
possible
explanation.
What do you
think will
happen?
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4. Test
hypothesis…
Perform an
experiment, make
observations, or
make a model.
Make a specific
list of what will be
done so it can be
repeated.
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5. Analyze data –
make tables,
graphs, etc.
What happened?
What did you see,
hear, or smell?
State your
observations.
0
20
40
60
80
100
1st
Qtr
3rd
Qtr
East
West
North
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6. Draw a conclusion
–what do the results
mean?
Was your hypothesis
Correct or incorrect?
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Independent, Dependent and Control
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Independent Variable:
what is changed by the experimenter…
manipulated
Dependent Variable:
what changes as a result of the change
in the independent variable.
Controlled Variables:
what is held constant throughout the
experiment.
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Determine the independent, dependent
and control variables in the data.
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How would we display this data?
Remember DRY MIX
Dep
end
ent R
espo
nd
ing
on
Y ax
is Manipulated Independent on X axis
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ASSIGNMENT…For Thursday
Google Scientific Method Flow Chart Images,
pick one out that you and partner would like to
make and bring it to class. Think of a problem you
could solve using the Scientific Method and
illustrate it on your flow chart, making sure to label
independent, dependent, and control variables
Here are some examples…
ETC.