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Carbon is the sixth most abundant element in the cosmos, yet its abundance
in the earth's crust does not even make it among the top ten elements on
our planet. There are more known chemical compounds of carbon than any
other element except for oxygen and hydrogen. Carbon composes compounds
with diverse properties such as graphite and diamond, as well as the recently
discovered Buckminster Fullerenes, or buckyballs. Carbon plays a critical
role on Earth as the "stuff" that Life is made from. Every living cell,
plant or animal contains carbon. Even in its pure, elemental form carbon
is very versatile.
This module will use elemental carbon to illustrate a number of key
concepts. These concepts can also be applied to other materials.
Key concepts:
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Structure, property, processing, and performance parameters of carbon are
linked at all size scales
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Identical carbon atoms can form different crystalline structures, including
diamond, graphite, and fullerenes that have diverse properties
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A substance's macroscopic properties are affected by its nanoscopic structure
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Processing methods can vary the properties and vary the performance of
a material in technical applications
Learning Objectives:
After completing this module, you will be able to:
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Rationalize some of a material's physical properties after inspecting its
crystal structure
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Rationalize how to use a substance on the basis of its properties
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Apply formula and crystal data to calculate the ideal density of the various
crystalline forms of carbon
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Experimentally estimate the value of Avogadro's Number from microscopy
data
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Discovery based learning via SPM Live! using graphite
In addition to addressing the needs of students at the beginning years
of college, this module also addresses the following National Science Education
Standards for grades 11-12:
Content Standard A
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Abilities necessary to do scientific inquiry
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Understandings about scientific inquiry
Physical Science Content Standard B
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Structure of atoms
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Structure and properties of matter
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Chemical reactions
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Motions and forces
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Conservation of energy and increase in disorder
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Interactions of energy and matter
Science and Technology Content Standard E
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Abilities of technological design
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Understandings about science and technology
Nature and History of Science Content Standard G
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Science as a human endeavor
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Nature of scientific knowledge
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Historical perspectives
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