Welcome to
Distributed
Learning
Chemistry
11
The following activity is an activation assignment. This must be
completed online and e-mailed to your instructor before you may register in DL Chemistry 11. It
will be worth 5% of your total course mark. This assignment should take approximately two hours in
total. There are links to some recommended websites where you can learn the concepts as you complete
this assignment.You may wish to do a rough copy of your answers on paper, before completing the
online version. If you quit the program, it will be submitted automatically, even if you have not
finished, so be sure to complete all sections during the same time period and then
submit
Learning Outcomes:
Describe the development of the model of the
atom
Use this web link to answer the following questions: CLICK HERE
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1.
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What
was John Dalton’s definition of an element?
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2.
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Describe in your own words the visualization of molecules reacting.
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3.
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Which
of Dalton's ideas below do we no longer believe? (you need to check your answer
online!)
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4.
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Describe J.J. Thompson’s experiment in your own terms.
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5.
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Which
statement from the website about Thomson's model of the atom is true?
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6.
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Why
did Rutherford modify Thomson’s model?
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7.
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In
which two ways did Rutherford change Thomson's model of the atom?
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8.
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How
did Bohr explain the characteristic colours of light associated with each type of atom?
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9.
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Do
you think that there are more parts to the atom yet to be discovered?
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Learning
Outcomes:
Demonstrate skills in measuring and in recording
data
Communicate results and data in clear and understandable
forms
Part One: Measurement and Uncertainty
Directions:
Explain, giving examples, the following quotations from the
article. CLICK
HERE
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1.
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“Uncertainty is certain!”
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2.
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“In science, there are numbers and there are "numbers."
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3.
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“All measurements of quantities that can assume a continuous range of
values
(lengths, masses, volumes, etc.) consist of two parts: the reported
value itself
(never an exactly known number), and the uncertainty associated with
the
measurement.”
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4.
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“All measurements are subject to error which contributes to the uncertainty
of
the result.”
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5.
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“Unlike random error, which is impossible to eliminate, systematic errors
are
usually quite easy to avoid or compensate for.”
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6.
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“We tend to use these two terms (accuracy and precision) interchangeably
in
our ordinary conversation, but in the context of scientific measurement,
they
have very different meanings.”
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Part Two:
Reading Scales
Study the
tutorial on "Uncertainty in Measurements" CLICK
HERE
Now see what you have learned by trying a practice
assignment on Reading Scales.
You can repeat
the practice assignment until you are satisfied with your result.
(*NOTE: You will need to include your FIRST NAME and LAST NAME when
you log in to the practice assignment on Reading Scales so that your mak will be
recorded.)
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1.
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Congratulations! You are now finished the Chemistry 11 DL Activation Assignment. Your
results will be automatically sent for marking and you will then recieve further instructions on how
you will be able to access your course work.
Finally, Welcome to
North Vancouver School District Distributed Learning and we look forward to working together to help
you achieve your goals.
Questions / Comments
Please include any questions / comments you may have about the
activiation assignment, your upcoming coursework, or any other information that you might want to
share with your teacher to give yourself the best chance for success in this course.
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