Chapter 1
Table of Contents
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Chapter 1
Table of Contents Chemistry
B2A
Mr. Kimball
dkimball@bakersfieldcollege.edu
http://www2.bakersfieldcollege.edu/dkimball
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Chapter 1
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Welcome to Chemistry 2A
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Sign roll sheet
Attendance the first 2 weeks-don’t be late!
A little about myself
A little about you-Beginning of Class Survey
– New? ESL? International?
– Learning Disorders
• Get phone numbers of others in class
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The Class Website and Syllabus
http://www2.bakersfieldcollege.edu/dkimball
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Learning Skills
1.
2.
3.
4.
5.
6.
7.
8.
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10.
11.
12.
13.
Take Responsibility (it’s your education)
Have Confidence (you can do it!)
Don‘t Procrastinate (study for final now)
Read/Listen Precisely (ignore things that just aren’t there)
Practice (use practice tests)
Persistence (get up one more time than you fall down)
Recognize Patterns (most things are done the same way)
Use Pictures (outline problem)
Think Sequentially (one step at a time)
Do Neat work (so you can check it)
Group Study (explain things to each other)
Try Something New (don’t keep repeating failures)
Get Help
Learning Skills Power Point
We will discuss these during the first lab period.
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Chapter 1
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Using This Book
• Each chapter has practice problems throughout the text.
Example problems are worked out within the chapter.
The Self-Check Exercises found after the example
problems have answers in the back of the book.
• Answers to even-numbered questions and problems in
the back of each chapter are found in the back of the
book.
• In Appendix A are instructions on how to use your
calculator as well as a review of basic algebra, scientific
notation, graphing and general conversion factors.
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Chapter 1
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Using This Book
• If you have trouble with a particular problem in the
homework, find an example found with the chapter
that is similar or look for an even number problem in
the back of the chapter that is similar and work it.
Compare your answer to the answer in the back of
the book.
• You need to practice lots of problems to master the
skills you will need.
• Lab 2 in the lab book also teaches how to use the
calculator and will be discussed in lab.
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Using This Book
• You can use the Webassign web site for additional
resources (Practice it! Read it! Watch it!). Your
textbook gives you a password to access the site for
more learning aids.
• You should check my Webassign web page for
information on accessing and using the Webassign
online homework system and my policies regarding
problems you may encounter when doing the
homework.
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Chapter 1
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cccc
Some students prefer to skim
through a course or just get by, just
get to the other side of the lake.
This is doing the least you can do!
If you really want
to succeed you
need to go deep!
If you don’t, you
will miss a whole
world of wonder!
This is doing the
most you can do!
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Chapter 1
Table of Contents
1.1
1.2
1.3
1.4
1.5
Chemistry: An Introduction
What is Chemistry?
Solving Problems Using a
Scientific Approach
The Scientific Method
Learning Chemistry
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Why Is Chemistry Important?
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New materials
New pharmaceuticals
New energy sources
Food supplies
Help the environment
Can you think of others?
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In this course, you will:
• Learn the principles of
chemistry.
• Become a better problem
solver!
Bart Eklund checking air quality
at a hazardous waste site.
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Chapter 1
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Table
of ContentsWhat is Chemistry?
• The science that deals with the materials of the universe
and the changes these materials undergo.
• The central science. Understanding most other fields of
science requires an understanding of chemistry.
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Chapter 1
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Solving
Problems Using a Scientific Approach
Table
of
Contents
1. Recognize the problem and state it clearly.
a) Making an observation.
2. Propose possible solutions to the problem or
possible explanations for the observation.
a) Formulating a hypothesis.
3. Decide which of the solutions is the best or
decide whether the explanation proposed is
reasonable.
a) Performing an experiment.
Scientific thinking can help you in all parts of your life!
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Science
• Science is a framework for gaining and
organizing knowledge.
• Science is a plan of action — a procedure for
processing and understanding certain types of
information.
• Scientists are always challenging our current
beliefs about science, asking questions, and
experimenting to gain new knowledge.
 Scientific method is needed.
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Steps in the Scientific Method
Examples:
1. Pons and Fleishman, Univ.
of Utah.
2. Horoscope
3. Weather.
A mystifying problem
from the textbook. Why
did David and Susan get
sick? Lead Poisoning in
Italian pottery.
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Concept Check
Which of the steps in the scientific method is missing from the
following situation?
“Your instructor is holding a balloon and quickly inhales some of
the gas inside the balloon. He then speaks and his voice
changes to a high-pitched sound (and sounds quite funny!). He
then asks you to determine what gas was inside the balloon that
he inhaled. Based on your observations, you conclude that the
gas must be helium.”
a)
b)
c)
d)
State the problem.
Make observations.
Formulate a hypothesis.
Perform experiments.
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Scientific Terms
Law
• A summary of what happens.
Hypothesis
• A possible explanation for an observation
or a guess.
Theory (Model)
Law of Gravity.
What makes a
rocket fly?
• An explanation why it happens.
• Set of tested hypotheses that gives an overall
explanation of some natural phenomenon.
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Chapter 1
Aristotle
Table
of Contents
Earth
Air
Fire
Water
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Chapter 1
Galilei
Table Galileo
of Contents
Father of the Scientific Method
Heavy things
fall faster
than light
things????
Aristotle
Free Fall Movie
The Slinky Experiment
Super Slinky Experiment
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Chapter 1
Archimedes
Table of
Contents
Archimedes lived in Syracuse on the island of Sicily.
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Chapter 1
Archimedes
Table of
Contents
Archimedes used simple
machines for catapults
and to move water up-hill.
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Chapter 1
Democritus
(460-370 BC)
Table of Contents
Greek Philosopher who first coined the word “atomos”
(a=not tomos=cut).
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Learn the vocabulary.
Memorize important information.
Learn and practice processes.
Keep working and learning from your mistakes.
Ask questions!
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