1. Chapter 1 Table of Contents Return to TOC

2. Chapter 1 Table of Contents Return to TOC Mr. Kimball dkimball@bakersfieldcollege.edu http://www2.bakersfieldcollege.edu/dkimball Chemistry B2A

3. Chapter 1 Table of Contents Return to TOC Welcome to Chemistry 2A 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 1

4. Chapter 1 Table of Contents Return to TOC The Class Website and Syllabus http://www2.bakersfieldcollege.edu/dkimball 1

5. Chapter 1 Table of Contents Return to TOC 1.Take Responsibility (it’s your education) 2. Have Confidence (you can do it!) 3. Don‘t Procrastinate (study for final now) 4. Read/Listen Precisely (ignore things that just aren’t there) 5. Practice (use practice tests) 6. Persistence (get up one more time than you fall down) 7. Recognize Patterns (most things are done the same way) 8. Use Pictures (outline problem) 9. Think Sequentially (one step at a time) 10. Do Neat work (so you can check it) 11. Group Study (explain things to each other) 12. Try Something New (don’t keep repeating failures) 13. Get Help Learning Skills Learning Skills Power Point 1 We will discuss these during the first lab period.

6. Chapter 1 Table of Contents Return to TOC 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. 1

7. Chapter 1 Table of Contents Return to TOC 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. Using This Book 1

8. Chapter 1 Table of Contents Return to TOC 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. Using This Book 1

9. Chapter 1 Table of Contents Return to TOC 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! cccc

10. Chapter 1 Table of Contents Return to TOC 1.1 Chemistry: An Introduction 1.2 What is Chemistry? 1.3 Solving Problems Using a Scientific Approach 1.4 The Scientific Method 1.5 Learning Chemistry

11. Chapter 1 Table of Contents Return to TOC Why Is Chemistry Important? New materials New pharmaceuticals New energy sources Food supplies Help the environment Can you think of others? 1

12. Chapter 1 Table of Contents Return to TOC In this course, you will: Learn the principles of chemistry. Become a better problem solver! 1 Bart Eklund checking air quality at a hazardous waste site.

13. Chapter 1 Table of Contents Return to TOC 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. 1 What is Chemistry?

14. Chapter 1 Table of Contents Return to TOC 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! 1 Solving Problems Using a Scientific Approach

15. Chapter 1 Table of Contents Return to TOC 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. 1

16. Chapter 1 Table of Contents Return to TOC Steps in the Scientific Method 1 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.

17. Chapter 1 Table of Contents Return to TOC 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)State the problem. b)Make observations. c)Formulate a hypothesis. d)Perform experiments. 1

18. Chapter 1 Table of Contents Return to TOC Scientific Terms A summary of what happens. Law Theory (Model) An explanation why it happens. Set of tested hypotheses that gives an overall explanation of some natural phenomenon. Hypothesis A possible explanation for an observation or a guess. 1 Law of Gravity. What makes a rocket fly?

19. Chapter 1 Table of Contents Return to TOC Aristotle Earth Air Fire Water

20. Chapter 1 Table of Contents Return to TOC Galileo Galilei Father of the Scientific Method Heavy things fall faster than light things???? Aristotle Free Fall Movie The Slinky Experiment Super Slinky Experiment

21. Chapter 1 Table of Contents Return to TOC Archimedes Archimedes lived in Syracuse on the island of Sicily.

22. Chapter 1 Table of Contents Return to TOC Democritus (460-370 BC) Greek Philosopher who first coined the word “atomos” (a=not tomos=cut).

23. Chapter 1 Table of Contents Return to TOC Learn the vocabulary. Memorize important information. Learn and practice processes. Keep working and learning from your mistakes. Ask questions! 1