1. Using the Misuse of Science to Teach Biology and Chemistry

2. The Misuse of Science Making critical thinking a part of a biology and chemistry Class Jeff Bradbury Cerritos College Jeff Orlinsky Warren High School

3. Our Goal: To demonstrate how you can use the misuse of science, especially the misappropriation of science terminology, as a jumping off point to teach biology and chemistry concepts.

4. Making Things Relevant Why use mass media? Introduce Critical Thinking skills We are not introducing new labs, just a different way to incorporate the labs Science classrooms are more than content. Students need to experiment, draw conclusions. Manipulate variables.

5. Mass Media http://www.youtube.com/watch?v=oUhBT40skLw

6. Misuse: “pH Balance”

7. pH- Acids-Bases Biology –Skin Bacteria growth –Selection media. Chemistry Buffers pH Titration labs

8. Buffers are critical for maintaining a constant pH of important solutions like the ocean or the blood stream, although the pH may not necessarily be constant 7 or neutral. A buffered pH can be at any level depending on the components of the buffer. used.

9. pH paper with acid, neutral and base solutions unbuffered

10. pH paper with acid, neutral and base solutions buffered at pH 5

11. pH paper with acid, neutral and base solutions buffered at pH 9

12. Misuse: “pH Balance” A Better use: Buffers

13. Misuse: “pH Balance” A Better use: Buffers Learning Experience: Buffers

14. Misuse: “Energy Drinks”

16. Calories Biology Calorie lab Food Chain activities Chemistry Calories Lab

17. Misuse: “Energy Drinks” A Better use: Calories

18. Misuse: “Energy Drinks” A Better use: Calories Learning Experience: Calorimetry with a peanut

19. Measuring the calories in a peanut

20. Misuse: “Chemical Free”

21. Chemical Free

23. Misuse: “Chemical Free” A Better use: All matter is made of atoms and compounds

24. Misuse: “Chemical Free” A Better use: All matter is made of atoms and compounds Learning Experience: My Pet Molecule & Dihydrogen Monoxide

26. Chemicals in the system Biology –Geochemical systems –Elements and biochemistry activities

27. Misuse: “Pure Vinegar”

28. Misuse: “Pure Vinegar” A Better use: Solutions

29. Misuse: “Pure Vinegar” A Better use: Solutions Learning Experience: Investigating Solutions

30. Misuse: “Artificially Flavored”

31. Misuse: “Artificially Flavored” A Better use: “Synthesis”

32. Misuse: “Artificially Flavored” A Better use: “Synthesis” Learning Experience: Synthesizing pentyl acetate (Banana Oil)

33. Misuse: “Organically Grown”

34. Misuse: “Organically Grown” A Better use: “It’s all Organic Chemistry!”

35. Misuse: “Organically Grown” A Better use: “It’s all Organic Chemistry!” Learning Experience: Building Molecules

36. Misuse: “Organically Grown” A Better use: “It’s all Organic Chemistry!” Learning Experience: Which is the toxic molecule?

37. Misuse: Food Labels

38. Food Labels http://www.youtube.com/watch?v=o4EqRZPxncg

39. Food Labels Biology –Peanut butter and oil Chemistry Non dairy fillings

40. Arsenic http://www.youtube.com/ watch?v=OV5z-hEqjDwhttp://www.youtube.com/ watch?v=OV5z-hEqjDw 9/2011 Organic to inorganic Arsenic and valence electrons inorganic arsenic, reduced (trivalent As (III)) and oxidized (pentavalent As(V)

41. What’s in a name?