Physical vs. Chemical Change pg 87

1. Physical vs. Chemical Changepg 87

2. Bpop

3. Physical Change- • 1) Only physical properties change. Chemical properties do not change.

4. 2) Physical changes are generally easy to reverse. • 3) No energy is produced by the substance.

11. Chemical Change- • 1) Both physical and chemical properties are changed.

12. 2) Changes are not reversible without another reaction. • 3) Energy is often produced ( fire or heat, for example).

13. Most chemical changes will have one or more of the following: • Heat • Burning • Color without you adding it • Odor • Gas given off

22. Law of Conservation of Mass • Matter may change form, it can not be created or destroyed

23. http://www.brainpop.com/science/matterandchemistry/conservationofmass/http://www.brainpop.com/science/matterandchemistry/conservationofmass/

24. Bpop quiz

25. Let’s test your knowledge

26. Pick an apt clock to work with • Every group gets a whiteboard • Have 30 sec to 1 min • Then 321 show!

27. Baking

28. Chemical Change

29. Mashing potatoes

30. Physical Change

31. Ripping a page

32. Rotting an apple

33. Chemical Change

34. Adding food coloring to water

35. Physical Change

36. Chewing food

37. Physical Change

38. Digesting food

39. Chemical Change

40. An ice cube melting

41. Physical Change

42. Mixing salt in water

43. Physical Change

44. Two clear liquids are mixed and a white color forms

45. Chemical Change

46. Water turning to vapor

47. Physical Change

48. Mixing salt and sugar

49. Physical Change

50. The reason the Statue of liberty is green