Teaching Chemistry is Wonderful Now.

1. Introduction to
Chemistry
Mr. Fearon

2. Section 1.1
Chemistry
• OBJECTIVES:
– Define chemistry and
differentiate among its
traditional divisions.

3. Section 1.1
Chemistry
• OBJECTIVES:
– List several reasons to study
chemistry.

4. What is Chemistry?
• The study of “matter”, its
composition, properties, and the
changes it undergoes.
Everyday life?
• Applied Chemistry- is using
chemistry to attain certain goals,
in fields like medicine,
agriculture, and manufacturing
• Pure chemistry- gathers
knowledge for the sake of
knowledge

5. 5 Major Areas of
Chemistry
• Analytical Chemistry- concerned with
the composition of substances.
• Inorganic Chemistry- primarily deals
with substances without carbon
• Organic Chemistry- essentially all
substances containing carbon
• Biochemistry- Chemistry of living things
• Physical Chemistry- describes the
behavior of chemicals (ex. stretching)

6. Chemistry is
• central to modern science, and to
almost all human endeavors.
• important to all sciences - biology,
geology, physics, engineers, etc.
• a natural science.
• a language with its own
vocabulary.
• a way of thinking.

7. Why Study Chemistry?
• everyone and everything around
us involves chemistry
• What in the world isn’t Chemistry?
• helps you make choices
• possible career for your future
• used to attain a specific goal
• Do you remember “pure” and
“applied” chemistry?

8. Section 1.2
Chemistry Far and Wide
• OBJECTIVES:
– Summarize ways in which
chemistry affects your daily life.

9. Section 1.2
Chemistry Far and Wide
• OBJECTIVES:
– Describe the impact of
chemistry on various fields of
science.

10. Chemistry Far and Wide
• Materials- perfume, steel,
ceramics, plastics, rubber,
paints, nonstick cooking
utensils, polyester fibers
• Energy- greater demands
– conserve it, or produce more
– fossil fuels, solar, batteries,
nuclear (don’t forget pollution!)

11. Chemistry Far and Wide
• Medicine and Biotechnology– vitamin C, penicillin, aspirin
– materials for artery transplants
and hipbones
– Human Genome Project
– bacteria producing insulin
– cloning

12. Chemistry Far and Wide
• Agriculture- world’s food
supply
– plant growth hormones
– ways to protect crops
– disease resistant plants
• The Environment- both risks
and benefits involved in
discoveries
– carbon dioxide, ozone, warming

13. Chemistry Far and Wide
• Astronomy and Space
Exploration– composition of the planets
– analyze moon rocks
– planet atmospheres
– life on other planets?

14. Section 1.3
Thinking Like a Scientist
• OBJECTIVES:
– Describe the steps involved in
the scientific method.

15. Section 1.3
Thinking Like a Scientist
• OBJECTIVES:
– Distinguish between a theory
and a scientific law.

16. The Scientific Method
• A logical approach to solving
problems or answering questions.
• Starts with observation- noting
and recording facts
• hypothesis- an educated guess as
to the cause of the problem, or a
proposed explanation

17. Scientific Method
• “controlled” experiment- designed
to test the hypothesis
• only two possible answers
– hypothesis is right
– hypothesis is wrong
• Generates data observations from
experiments.
• Modify hypothesis - repeat the
cycle

18. Observations
Hypothesis
Experiment
• Cycle repeats
many times.
• The hypothesis
gets more and
more certain.
• Becomes a theory
– A thoroughly
tested model that
explains why
things behave a
certain way.

19. Observations
Hypothesis
Experiment
• Theory can never
be proven- due to
new information
• Useful because
they predict
behavior
• Help us form
mental pictures of
processes
(models)

20. Observations
Hypothesis
Experiment
• Another outcome is
that certain behavior
is repeated many
times
• Scientific Law is
developed (math?)
• Describes how
things behave
• Law- tells how
• Theory- tells why

21. Observations
Hypothesis
Theory
(Model)
Modify
Experiment
Prediction
Law
Experiment

22. Section 1.4
How to Study Chemistry
• OBJECTIVES:
– Explain why learning chemistry
requires daily effort.

23. Section 1.4
How to Study Chemistry
• OBJECTIVES:
– Describe the importance of
writing in the study of chemistry.

24. How to Study Chemistry
• Understanding and Applying
Concepts
– requires effort on your part
– read materials carefully
– take thorough notes you can
use
– study often and effectively
– quiet, well-lit, remove
distractions

25. How to Study Chemistry
• Understanding and Applying
Concepts
– chemistry has a language of it’s
own, so learn the vocabulary
– look around you, and make the
connection to the level of atoms
and molecules

26. How to Study Chemistry
• Using Your Textbook
– name chemical compounds
– write chemical formulas
– interpret graphs
– techniques to solve problems
• Use your Teacher and
Textbook!

27. How to Study Chemistry
• Using Your Textbook
– take good notes
– solve Practice Problems
– read, keeping objectives in mind
– Student Study Guide (p. 24)
– section summaries; Key Terms

28. How to Study Chemistry
• On Your Own
– go beyond the textbook
– make flashcards
– reread and rewrite notes
– quiz yourself and classmates
– form a study group
– ASK, ASK, and ASK

29. How to Study Chemistry
• Tests and Quizzes
– cramming never a good idea
– set aside a certain amount of time
every day
– get enough rest daily; nutrition
– read tests carefully / thoroughly
– do easy problems first
– show work, and evaluate answer