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Title:

Chemistry

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the study of matter, its properties, and the changes it undergoes. Branches of Chemistry ... Physical. Biochemisty. Nuclear. Science is a Process ... – PowerPoint PPT presentation

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Title: Chemistry


1
Chemistry
  • -the study of matter, its properties, and the
    changes it undergoes.

2
Branches of Chemistry
  • Organic
  • Inorganic
  • Analytical
  • Physical
  • Biochemisty
  • Nuclear

3
Science is a Process
  • Science is more a way of doing things or solving
    problems than a collection of equations or ideas.
  • There is no need to rediscover the wheel, so
    discoveries are recorded to the known body of
    knowledge.

4
  • Pure Science
  • is concerned with making discoveries
  • Applied Science
  • uses the discoveries to make new products or
    procedures

5
The Scientific Method
  • a systematic method of finding the answer to a
    question or a problem
  • not just used by scientists

6
1. State the problem
  • lends direction to the problem solving
  • provides a way to tell if the problem has been
    solved

7
2. Conduct Research
  • gather as much information as possible beforehand
  • what is already known?

8
3. Form a Hypothesis
  • Make an educated guess as to the what or why of
    the problem

9
4. Conduct an Experiment
  • test the hypothesis
  • one or more conditions should be controlled
  • held the same in all tests
  • only test one variable at a time

10
5. Analyze the results
  • look at the data or observations collected during
    the experiment

11
6. Make a conclusion
  • does the data fit the hypothesis?
  • yes? hypothesis was correct
  • no? modify the hypothesis and retest

12
The short form
  • state problem
  • look
  • guess
  • test
  • check
  • make conclusion

13
Observations
  • What, not Why
  • Simply a record of what was observed

14
Conclusions
  • Why, not What
  • A statement of the cause behind the event

15
Theory
  • an explanation of how or why that has been
    successfully tested
  • can never be proven, are accepted as true
  • provide predictive powers

16
Law
  • a summary of the results of many observations or
    experiments
  • describes what, doesnt explain how or why
  • often math equations

17
Dont forget to return your Lab Safety
Contracts signed by yourself and a parent or
guardian as soon as possible.
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