Introduction to chemistry

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Teaching Chemistry is Wonderful Now.

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  • I have a study guide that you can buy from me at a cost of $100 Ill have it ready by the end of this week
  • Introduction to chemistry

    1. 1. Introduction to Chemistry Mr. Fearon
    2. 2. Section 1.1 Chemistry • OBJECTIVES: – Define chemistry and differentiate among its traditional divisions.
    3. 3. Section 1.1 Chemistry • OBJECTIVES: – List several reasons to study chemistry.
    4. 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. 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. 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. 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. 8. Section 1.2 Chemistry Far and Wide • OBJECTIVES: – Summarize ways in which chemistry affects your daily life.
    9. 9. Section 1.2 Chemistry Far and Wide • OBJECTIVES: – Describe the impact of chemistry on various fields of science.
    10. 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. 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. 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. 13. Chemistry Far and Wide • Astronomy and Space Exploration– composition of the planets – analyze moon rocks – planet atmospheres – life on other planets?
    14. 14. Section 1.3 Thinking Like a Scientist • OBJECTIVES: – Describe the steps involved in the scientific method.
    15. 15. Section 1.3 Thinking Like a Scientist • OBJECTIVES: – Distinguish between a theory and a scientific law.
    16. 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. 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. 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. 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. 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. 21. Observations Hypothesis Theory (Model) Modify Experiment Prediction Law Experiment
    22. 22. Section 1.4 How to Study Chemistry • OBJECTIVES: – Explain why learning chemistry requires daily effort.
    23. 23. Section 1.4 How to Study Chemistry • OBJECTIVES: – Describe the importance of writing in the study of chemistry.
    24. 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. 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. 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. 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. 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. 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

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