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					Chemistry
Lesson 1: What is chemistry?
Typical Teacher Talk
Many science teachers
begin a new topic with a
lecture and vocabulary.
What is chemistry?
                   Chemistry is the study of matter and energy and the
Too many
definitions         interactions between them.
with circular      Chemistry is the science of the materials that make up our
reasoning or        physical world.
with unclear       Chemistry and physics are specializations of physical
and new             science.
vocabulary.
                   Chemistry tends to focus on the properties of substances
                    and the interactions between different types of matter,
                    particularly reactions that involve electrons.
What is chemistry?
Lesson 1 is
based on an
explanation
of chemistry
from The
Chemical
History of a
Candle,
published in
1830.                          Michael Faraday
                     (22 September 1791 – 25 August 1867)
What is chemistry?
What did you      Observations are important.
learn?
What is chemistry?
Balances are
different from
scales

balance measures
mass

scale measures
weight
What is chemistry?
What did you      Observations are “enhanced” with tools.
learn?
                  Misuse of vocabulary may be avoided
                   through descriptions.
What is chemistry?
Two activities      Working definition:
yield the
following.           Chemistry is a science
                     based on observations
What is chemistry?
                  Ob-Scertainer® Kit
Expand our
working
definition with
Ob-Scertainers
What is chemistry?
Macroscopic      Visible to the naked eye; usually
versus
Microscopic       pertaining to large substances.
Views
                 Invisible or indistinct (hidden) with the
                  naked eye; usually pertaining to small
                  or far away substances.
What is chemistry?
An Analogy:
The Chemistry
Tree
What is chemistry?
                 Organic chemistry: The study of chemicals that contain
Common
                  carbon
definitions
found in         Inorganic chemistry: The study of elements, but particularly
textbooks         in metals, and are often involved in the preparation of new
                  catalysts.
                 Biochemistry: The study of process that take place in an
                  organism
                 Analytical: The study that focuses on composition of matter
                 Physical: The study that focuses on mechanisms, rate, and
                  energy transfers that occur when matter change
What is chemistry?
Pure, applied,      Pure: Knowledge for the sake of
chance
                     knowledge
                    Applied: Research directed toward a
                     goal or application
                    Chance discoveries (“Chance favors the
                     prepared mind” - Louis Pasteur)
What is chemistry?
Put it all      Chemistry is a science
together
                Like a tree, chemistry has many branches
                Chemistry is based on experimentation
                Chemistry may be done with a purpose of
                 gaining knowledge or making a product.
What is chemistry?
Assessment          85% of students must earn a 70% or
Before we can        greater on the assessment.
go to the next
topic, right?       Due tomorrow.
                    Do not copy from the textbook, notes,
                     or internet. Use your own thoughts!

				
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posted:3/31/2012
language:English
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