Transcript Who Is A Scientist?

Who Is A Scientist?
Pam Cohea
Region 15
July 2008
Texas Regional Collaborative for Excellence in Teaching Science
Let’s Have Some Fun!
Oobleck Science Video Clips
What is the question or
purpose of this
experiment?
What is the hypothesis of
this experiment?
Did the conclusion
support or disprove the
hypothesis?
How did the plan support
the testable hypothesis?
What data was collected
during this experiment?
What is the conclusion of
this experiment?
Using the same materials,
construct a question in
which the outcome is
unknown.
Change one variable of
the experiment and
hypothesize the outcome
based on this change.
Develop a plan or
Measure a property and
procedure to test a new
record your measurement.
hypothesis using the same
materials.
Construct a testable
hypothesis that has not
been explored using the
same materials.
Develop an investigation
based on the new
knowledge gained from
the experiment.
Who is a Scientist?
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From the Nobel Prize in Medicine acceptance speech
given by Werner Forssmann in 1956:
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"The credit for carrying out the first
catheterization of the heart of a living
animal for a definite experimental
purpose is due to an English parson, the
Reverend Stephen Hales. This
scientifically interested layman
undertook in Tordington in 1710 the first
precise definition of the capacity of a
heart. He bled a sheep to death and then
led a gun-barrel from the neck vessels
into the still-beating heart. Through this,
he filled the hollow chambers with
molten wax and then measured from the
resultant cast the volume of the heartbeat
and the minute-volume of the heart,
which he calculated from the pulse-beat.
Besides this, Stephen Hales was also the
first, in 1727, to determine arterial blood
pressure, when he measured the rise in a
column of blood in a glass tube bound
into an artery."
Pam Cohea
Toni Lafferty
EBAT DeBakey Institute
A&M University
This is where the story begins. It begins with a
superhero scientist named Dr. Quick.
This is what
Dr.Quick really
looks like. He is
a research
scientist. He is
very interested in
bats.
Dr. Quick became interested in bats when he saw
a picture of a bat wing. He could see the little
blood vessels in the wing branched like a tree.
Dr. Quick needed to find some bats. He discovered
that the Chihuahuan Desert in west Texas was an
environment with many bat habitats.
Dr. Quick and Missy
went to the
Chihuahuan Desert
to search for bats.
They found a Pallid
bat colony in a little
Texas town called
Valentine. The little
Pallid bats were
roosting in the school
house attic.
The principal of the school had a problem with the bats
in his attic. The scientists help solve the problem by
capturing the bats and removing the smelly guano.
Missy used safety equipment for protection.
This is one of the bats Dr. Quick caught. Why is
this bat a good model to study blood vessels?
The habitat for the colony of Pallid bats is now
at A&M University in College Station, Texas.
The scientist built a very special home for the
bats.
Pallid bats sleep during the day and hunt at
night. During the day they go into a very deep
sleep called torpor. Dr. Quick thought that the
bats could sleep in a little box while the scientists
observed the vascular system of its wing. This
bat box is made of Lego blocks!
This bat box is used as a bed for a sleeping bat too. Missy
trains the bats to sleep with their wing extended. The Q-Tips
gently hold the wing in place so the scientist can study the
blood vessels.
Blood vessels are very tiny and hard to observe.
Scientists magnify the blood vessels by putting the
bat box under a microscope while the bat sleeps.
Scientists are learning a lot about the blood vessels of bats.
They are collecting data using the computer linked to a
microscope.
Scientists must
follow safety rules
in the lab when
observing the bat
wing. Here is
Jennifer following
the safety rules.
What safety
equipment does
Jennifer use in the
lab?
Missy takes very good care of the bat colony. She
makes sure that the bats eat and exercise each night.
She wears special safety gloves when handling the
bats.
She carefully carries the sleeping bat in
a special bag from its habitat to the lab.
Everyone in the lab is very quiet so the
bat will not wake up.
Pallid bats are insectivores. They are fed
every night. That’s a lot of insects!
Missy and Jennifer play with a bat
puppet, because you should never
play with real bats.
What observations can be made about the
little bat’s ears? Can you see the tiny blood
vessels?
Do you think
researching the
vascular system
in the bat wing is
important?
How might this
help people?
Would you like to
be a research
scientist
someday?
Who is a
Scientist?
Encourage Questions!
Isidor I. Rabi, a Nobel Prize-winning physicist, was once asked
why he
became a scientist. He attributed it to his mother.
“My mother made me a scientist without ever intending to. Every
other Jewish mother in Brooklyn would ask her child after school,
‘So?
Did you learn anything today?’ But not my mother. She always
asked me
a different question. ‘Izzy,’ she would say, ‘did you ask a good
question
today?’ That difference—asking good questions—made me
become a
Resources
• http://www.stevespanglerscience.com/exper
iment/00000088
• http://www.kids4research.org/careers.html
• http://pbskids.org/zoom/grownups/scitrainin
g/wrapup.html
• http://www.vet.uga.edu/vpp/animaldoc/inde
x.php
• http://www.studystack.com/category-4
Texas A&M Resources
• http://ebat.tamu.edu/home/
• http://peer.tamu.edu
• http://peer.tamu.edu/VetOutreach.pdf
Oh Yeah – What About TAKS?
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C – cover the answer choices
U – underline the science words
R – read the question twice
E – evaluate extra (charts, graphs, ect.)
S – solve and write your answer
• http://www.tea.state.tx.us/student.assessment/resources/onl
ine/2006/grade8/science/8science.htm