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1.1 Chemistry

1.1 Chemistry. Objective 1: Define Chemistry and differentiate among its traditional divisions Objective 2: Decide why it is important to study Chemistry Objective 3: Summarize ways in which Chemistry affect your daily life and the impact it has on various science fields. What is Chemistry?.

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1.1 Chemistry

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  1. 1.1 Chemistry • Objective 1: • Define Chemistry and differentiate among its traditional divisions • Objective 2: • Decide why it is important to study Chemistry • Objective 3: • Summarize ways in which Chemistry affect your daily life and the impact it has on various science fields.

  2. What is Chemistry? • Definition: The study of the composition of matter, and the changes (transformations) it undergoes. • Chem from Egyptian word keme which means “earth” • Grew from human curiosity with the world. • http://www.youtube.com/watch?v=I-3DEFwHEzs

  3. Five Branches of Chemistry • Organic Chemistry – carbon containing substances. • Inorganic Chemistry- non-carbon containing substances. • Analytical Chemistry – the composition of substances. • Physical Chemistry – describing the behavior of substances. • Biochemistry – study of living substances.

  4. Why Study Chemistry? • Chemistry is everywhere and makes up everything. • You breathe chemicals, you drink chemicals, you wash in chemicals, you eat chemicals, you think using chemicals, you taste chemicals, you smell chemicals, you move using chemicals. • You should know something about the technologies that are used in the world. • You should know about the foods you eat, and the chemicals that affect your health. • http://www.youtube.com/watch?v=AbfW_CMMe48&feature=related

  5. Checkpoint • What is Chemistry and why is it valuable to us?

  6. Materials • Metals: gold, silver, platinum, brass, bronze, stainless steel, iron, nickel, copper, aluminum… • Crystals: diamonds, glass, ice, sugar, marble, quartz… • Plastics: PVC, teflon, nylon, styrofoam, polyester… • Liquids: water, alcohol, oils, paints… • Gases: air, helium, neon, argon… • Solids: wood, stone, sand, ceramics… • Natural Fibers: wool, cotton, hemp…

  7. Energy • Sources: Electricity, petroleum, coal, wood, wind, hydroelectric, nuclear, batteries, solar, photosynthesis, natural gas (methane), human (bicycles)…

  8. Medicine and Biotechnology • Health Products: vitamins, growth hormones, drug delivery systems, high blood pressure medicine, cloning… • Disease Control: antibiotics, diabetes, cancer, AIDS (HIV)… • Plant Biotech: Genetic engineering, pest resistance, frost resistance, plant hormones, root generation… • Biomedical: artificial heart, kidney machines, joint replacement, synthetic skin…

  9. Who do you picture using Chemistry?

  10. Waste Mgmt Dentist Food Scientist Pool Technician Auto Mechanic Solar Archeologist Electrical Nuclear Pharmacist Chemotherapy Oceanographer Geologist Flavor Developer Farmer SERVICE MEDICINE ENGINEERING EARTH FOOD Chemical Mechanical Climatology Gemologist/Jeweler Dry Cleaner Waste/H20 Treatment Biochemical Civil Meteorology Phys. Therapist Geneticist FDA Inspector Nutritionist Firefighter Who uses Chemistry?

  11. Science Careers • Have you ever thought about a career in science? • How might science impact you even if you do not choose a career in science?

  12. Group Activity • Write 3 words that come to mind when you think of the Scientific Method. • Pair-up and choose 3 words among the group that seem to be most important. • Now as a large group (class) filter your choices down to three final words that are associated with the Scientific Method.

  13. 1.3 Thinking Like a Scientist • Objective 1: • Describe the steps involved in the scientific method.

  14. 2. HYPOTHESIS 1. OBSERVATION 3. EXPERIMENTS 4. THEORY The Scientific Method • 1. Use senses to obtain information • 2. Proposed Explanation • 3. Test your hypothesis • 4. Extensively tested explanation of why experiment works.

  15. HOMEWORK • Chapter 1 Review p. 25; 16-28 all.

  16. The Scientific Method Extensively Tested Explanation of why Exp works Document your Theory Theory

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