2Section 1.1 Chemistry OBJECTIVES: Define chemistry and differentiate among it’s traditional divisions.
3Section 1.1 Chemistry OBJECTIVES: List several reasons to study chemistry.
4What 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 manufacturingPure chemistry- gathers knowledge for the sake of knowledge
55 Major Areas of Chemistry Analytical Chemistry- concerned with the composition of substances.Inorganic Chemistry- primarily deals with substances without carbonOrganic Chemistry- essentially all substances containing carbonBiochemistry- Chemistry of living thingsPhysical Chemistry- describes the behavior of chemicals (ex. stretching)
6Chemistry iscentral 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.
7Why Study Chemistry?everyone and everything around us involves chemistryWhat in the world isn’t Chemistry?helps you make choicespossible career for your futureused to attain a specific goalDo you remember “pure” and “applied” chemistry?
8Section 1.2 Chemistry Far and Wide OBJECTIVES:Summarize ways in which chemistry affects your daily life.
9Section 1.2 Chemistry Far and Wide OBJECTIVES:Describe the impact of chemistry on various fields of science.
10Chemistry Far and WideMaterials- perfume, steel, ceramics, plastics, rubber, paints, nonstick cooking utensils, polyester fibersEnergy- greater demandsconserve it, or produce morefossil fuels, solar, batteries, nuclear (don’t forget pollution!)
11Chemistry Far and Wide Medicine and Biotechnology- vitamin C, penicillin, aspirinmaterials for artery transplants and hipbonesHuman Genome Projectbacteria producing insulincloning
12Chemistry Far and Wide Agriculture- world’s food supply plant growth hormonesways to protect cropsdisease resistant plantsThe Environment- both risks and benefits involved in discoveriescarbon dioxide, ozone, warming
13Chemistry Far and Wide Astronomy and Space Exploration- composition of the planetsanalyze moon rocksplanet atmosphereslife on other planets?
14Section 1.3 Thinking Like a Scientist OBJECTIVES:Describe the steps involved in the scientific method.
15Section 1.3 Thinking Like a Scientist OBJECTIVES:Distinguish between a theory and a scientific law.
16The Scientific MethodA logical approach to solving problems or answering questions.Starts with observation- noting and recording factshypothesis- an educated guess as to the cause of the problem, or a proposed explanation
17Scientific Method“controlled” experiment- designed to test the hypothesisonly two possible answershypothesis is righthypothesis is wrongGenerates data observations from experiments.Modify hypothesis - repeat the cycle
18Cycle repeats many times. The hypothesis gets more and more certain. Becomes a theoryA thoroughly tested model that explains why things behave a certain way.ObservationsHypothesisExperiment
19Theory can never be proven- due to new information Useful because they predict behaviorHelp us form mental pictures of processes (models)ObservationsHypothesisExperiment
20Another outcome is that certain behavior is repeated many times Scientific Law is developed (math?)Describes how things behaveLaw- tells howTheory- tells whyObservationsHypothesisExperiment
21Law Modify Observations Theory (Model) Hypothesis Experiment PredictionModifyExperimentExperimentLaw
22Section 1.4 How to Study Chemistry OBJECTIVES:Explain why learning chemistry requires daily effort.
23Section 1.4 How to Study Chemistry OBJECTIVES:Describe the importance of writing in the study of chemistry.
24How to Study Chemistry Understanding and Applying Concepts requires effort on your partread materials carefullytake thorough notes you can usestudy often and effectivelyquiet, well-lit, remove distractions
25How to Study Chemistry Understanding and Applying Concepts chemistry has a language of it’s own, so learn the vocabularylook around you, and make the connection to the level of atoms and molecules
26How to Study Chemistry Using Your Textbook name chemical compounds write chemical formulasinterpret graphstechniques to solve problemsUse your Teacher and Textbook!
27How to Study Chemistry Using Your Textbook take good notes solve Practice Problemsread, keeping objectives in minduse the Chem ASAP! CD-ROMStudent Study Guide (p. 24)section summaries; Key Terms
28How to Study Chemistry On Your Own go beyond the textbook make flashcardsreread and rewrite notesquiz yourself and classmatesform a study groupASK, ASK, and ASK
29How to Study Chemistry Tests and Quizzes cramming never a good idea set aside a certain amount of time every dayget enough rest daily; nutritionread tests carefully / thoroughlydo easy problems firstshow work, and evaluate answer