1. In your own words, define chemistry Give 2 examples of things you did yesterday that involved chemistry

2. Chapter 1 Introduction to Chemistry

3. 1.1 Chemistry
Matter is anything that has ____________ and takes up _____________.
What is Chemistry?
*Because living and nonliving things are made of matter, chemistry affects all aspects of life and most natural events.

4. Areas of Study 1. Organic Chemistry – Study of chem.
Five traditional areas of study:
1. Organic Chemistry – Study of chem.
containing carbon
2. Inorganic Chemistry-no carbon/found
mainly in non-living things
3. Biochemistry-study of processes that take
place in organisms (muscle contraction,digestion)
4. Analytical Chemistry-composition of matter
5. Physical Chemistry-mechanism, rate,energy
transfer that occurs when matter changes

5. Pure and Applied Chemistry
Pure chemistry-the pursuit of chemical knowledge for its own sake
Applied chemistry-research that is directed toward a practical goal or application
*Pure research can lead to an application, but an application can exist before research is done to explain how it works.
Example: Nylon, Aspirin, Technology

6. Why should we study chemistry?
Explain the natural world
Prepare for a career
Be an informed citizen
Knowledge

7. 1.2 Chemistry Far and Wide
Chemists design materials to fit specific needs
Often inspired by nature (burrs/cloth)
*Macroscopic world
*Microscopic world

8. What impact do chemists have on…
Energy
Medicine and Biotechnology
Agriculture
The Environment
The Universe

9. Energy
Chemists play an essential role in finding ways to conserve energy, produce energy, and store energy.
Conservation?
Production?
Storage?

10. Medicine and Biotechnology
Chemistry supplies the medicines, materials, and technology that doctors use to treat their patients.

11. Agriculture
Chemists help to develop more productive crops and safer, more effective ways to protect crops.

12. The Environment
Chemists help to identify pollutants and prevent pollution.

13. The Universe
Chemists gather data from afar and analyze matter that is brought back to Earth.

15. 1.3 Thinking Like a Scientist

16. Chemistry – Alchemy (Alchemists developed the tools and techniques for working with chemicals)
Antoine Lavoisier (late 1700s) helped transform chemistry from a science of observation to the science of measurement it is today. (O2 required for a material to burn)

17. The Scientific Method
A logical, systematic approach to the solution of a scientific problem
State the problem
Collect information/Research
Hypothesis – able to test
Experiment – variables/control
Make observations/Data collection
Conclusion-accept or reject hypothesis
Publish results

18. Experiment Procedure used to test a hypothesis
Variables/factors that can change
a. Independent variable (manipulated) – the variable that you ____________ during an experiment
b. Dependent variable (responding) – the variable that is _________________ during the experiment
*the experiment must produce the same result no matter how many times it is repeated, or by whom…the importance of publishing procedure with results

19. Theory A well-tested explanation for a broad set of observations
(ex: MO, VSEPR p. 232)
*Can a theory be changed?
Scientific Law
-a concise statement that summarizes the results of many observations and experiments
(The Gas Laws p. 418)
When can a hypothesis become a theory?

20. Why are collaboration and communication important?
How has communication among scientists changed over time?

21. 1.4 Problem Solving in Chem
Develop a plan and implement
Analyze, calculate, evaluate
See sample problem 1.1 (p.30)

22. Question
Does the amount of sleep a student gets affect how well he/she does in school?