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Objectives:

Objectives: . Recognize that soaps are chemicals that vary in their characteristics Consider the importance of market research in product design Examine sampling issues in administering a survey Compare the information provided by qualitative experiment. Drill:.

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Objectives:

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  1. Objectives: • Recognize that soaps are chemicals that vary in their characteristics • Consider the importance of market research in product design • Examine sampling issues in administering a survey • Compare the information provided by qualitative experiment

  2. Drill: • What do you think makes a good soap?

  3. Homework: • Cookin’ Chem Chapter Challenge due Monday 1/10/11

  4. Chapter Challenge • Create a procedure to make a soap from natural products that can be sold at local stores.

  5. Activity 1 What Makes a Good Soap?

  6. What do you see? • Look at the picture on page 743 and describe what you see. Be prepared to discuss what you see with the class.

  7. What do you think? Soap is a multi-billion industry; some of the biggest corporations in the U.S. are soap companies. • How many different cleaning products does your family have at home? • Why are there so many? • Are they all needed?

  8. Investigate • Pages 743 – 745

  9. Chem Talk • Cleaning agents • Vary greatly in what they intend to clean • Depends on what it cleans • Depends on what kind of dirt it cleans • Depends on how it cleans the dirt

  10. Chem talk • Soap Scum • Formed from soap and hard water • Hard water • Water that is rich in magnesium and calcium salts • Interferes with soaps effectiveness

  11. Chem Talk • Other Cleaners • Detergents • Chemicals with sodium or potassium ions that reduce soap scum • Abrasive cleaners • Soap mixed with grit • Waterless hand cleaners • Soap mixed with ethanol

  12. Chem Talk • Testing a soap for effectiveness • Quantitative tests • Tests with numerical data • Qualitative tests • Tests with non-numerical data

  13. What do You Think Now? At the beginning of the activity you were asked: • How many different cleaning products does your family have at home? • Why are there so many? • Are they all needed? • Revisit your answers. How has this activity changed the way you view cleaning products in your home?

  14. Reflecting on the Activity and the Challenge Page 749

  15. Inquiring Further • Market Research Methods

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