From DNA to Silly Putty, the Diverse World of Polymers - Jan Mattingly
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From DNA to Silly Putty, the diverse world of polymers - Jan Mattingly
http://ed.ted.com/lessons/from-dna-to-silly-putty-the-diverse-world-of-polymers-jan- mattingly
1. Polymers are formed by chemical reactions in which a large number of molecules called ______are joined to form a chain. a. Proteins b. Monomers c. Atoms d. Polypons
2. When small organic molecules are joined together, giant molecules are produced. Giant molecules are known as ______. a. Megatron Molecules b. Carbons c. Polyols d. Macromolecules
3. There are four basic kinds of biological macromolecules. They are carbohydrates, lipids, ______and nucleic acids. a. Glucose b. Amino acids c. Proteins d. Vitamins 4. Leo Baekeland invented ______which was one of the earliest synthetic polymers. a. Bakelite b. Plastic c. Nylon d. Silly Putty
5. The super-absorbent polymer that can absorb over 200 times its weight in water and is used as a filler for disposable diapers is called ______. a. Calcium carbonate b. Sodium polypeebgone c. Sodium polyacrylate d. Potassium Iodide
6. Clearly, synthetic polymers make our life easier, but their use has caused environmental problems. What ways can we reduce pollution problems caused by the overuse of synthetic polymers?
7. Why do different polymers have different properties? 8. Slime, gak and oobleck are a few slimey favorites. Do you remember the first time you played with slime? Can you explain the difference between a Newtonian Fluid versus a Non Newtonian Fluid?