Characteristics

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Characteristics of Science
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Importance of Vocabulary
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A research team proceeded toward the apex of a
natural geologic protuberance, the purpose of
their expedition being the procurement of a
sample of fluid hydride of oxygen in a large
vessel, the exact size of which was unspecified.
One member of the team precipitantly descended,
sustaining severe fractural damage to the upper
cranial portion of his anatomical structure.
Subsequently, the second member of the team
performed a self-rotational translation oriented
in the direction taken by the first member.
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A female of the species homo sapiens was the
possessor of a small immature ruminant of the
genus ovis, the outer most covering of which
reflected all wavelengths of visible light with a
luminosity equal to that mass of naturally
occurring microscopically crystalline water.
Regardless of the translational pathway chosen by
the Homo Sapiens, the probability was 1 that the
aforementioned ruminant would select the same
pathway
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Safety in the Lab
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• Glassware safety
• Never use broken or chipped glassware
• Never use glassware that is not thoroughly dry
• Never pick up glassware unless you are sure it is
  not hot
• Always clean glassware thoroughly before putting
  it away

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• Fire Safety
• Never use any source of fire without wearing
  safety goggles
• Never heat ANYTHING without being instructed to
  do so
• Never heat anything in a closed container
• Always use clamps, tongs, heat resistant gloves
  to handle hot objects
• Always maintain a clean work area especially when
  using a flame

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• Chemical Safety
• Never smell a chemical directly from its
  container
• Never mixed chemicals unless instructed to do so
• Never touch or taste chemicals unless instructed
  to do so
• Keep all lids closed when chemicals are not in
  use
• Immediately rinse with water if chemicals get on
  your skin then tell your teacher

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Eye And Face Safety When heating a test tube,
always point it away from you
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Sharp Instrument Safety Handle any sharp
instrument with extreme care Never cut any
material toward you always cut away from
you Immediately notify your teacher if your skin
is cut
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Electrical Safety Never touch any electrical
appliance or outlet with wet hands
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What is wrong with this picture?
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Scientific Method
a systematic approach to solving a problem
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• Basic steps
• State the problem
• 2. Do Research
• 3. Form a hypothesis
• 4. Perform the experiment
• 5. Record and analyze data
• 6. State the conclusion

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Big party Friday night and you are the only one
without a date. Whats the problem? You have
the scientific method on your side. First you
need to snap out of your pity party for one and
focus on the problem How can I get a date for
Friday night?
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Next, do a little research. Come on If you
want the right date then you need to examine the
possibilities eliminate poor choices consider
likely choices No need to worry just do a little
research. Remember to eliminate all people who
already have a date no need to create another
problem.
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Now you have stated the problem and did a little
research. You are ready to form your
hypothesis. Remember a hypothesis is an educated
guess. And sometimes even Einstein was wrong. If
I ask out ____________, then I will get a date
for the party on Friday.
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Put it to the test. This is not the time to be
shy. Friday will be here soon. Decide on your
procedure and execute it brilliantly. This is
your game plan!!!
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Collect the data. Did your possible dates say
yes, no, maybe or who are you? Keep it organized.
Make a chart, do a little graphing. You need to
know if your hypothesis was correct. Only the
data can tell.
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Conclusion. Will you be going alone to the party
or do you need to go buy a new outfit so you can
show your date off in style? Did your hypothesis
work like a charm? Why? Did it flop and send you
back to the thinking chair to think, think,
think? Why? What would you next time? Was your
experiment flawed? What was wrong with your
original hypothesis?
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Features of an Experiment
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Variables
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A variable is a factor that can vary or
change in a situation A controlled variable
is the factors in an experiment that remain the
same A manipulated variable is the one factor
in an experiment that is deliberately changed
A responding variable is the one factor in an
experiment that may change as a result of the
manipulation. This variable is the outcome of
the experiment.
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The time it takes to run a kilometer depends on
the amount of exercise a person
gets. Manipulative variable Responding
variable Controlled variables
The temperature of the water was measured at
different depths of the lake Manipulative
variable Responding variable Controlled variables
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Hypothesis
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1. A hypothesis is an educated guess. 2. You
must include the manipulated and responding
variable in the hypothesis. 3. Written as an
ifthen statement
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Problem To what extent does the length of
daylight affect the number of chicken eggs
laid? What is a possible hypothesis?
MV amount of helium in a balloon RV
height the balloon rose in the air What is a
possible hypothesis?
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Conclusion
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1. A conclusion ties all of the information from
your lab together. 2. In the
conclusion Write using complete
sentences. weather or not you hypothesis was
correct. If correct, site evidence that
supports your hypothesis. If incorrect,
give reasons why. State what could have been
done differently if lab was done again. 3.
Usually about a paragraph in length.