1. Physical Science Bell ringers Spring Semester

2. May 18, 2012 No bell ringers this week Return textbook to Mrs. Green • Olympic PowerPoint Presentations

3. May 17, 2012 No bell ringers this week Return textbook to Mrs. Green • Olympic PowerPoint Presentations

4. May 16, 2012 No bell ringers this week Bring Physical Science Textbook tomorrow • 1st & 5th – Olympic PowerPoint Presentations • 4th – get out study guide and spend a few moments to study before the final

5. May 15, 2012 No bell ringers this week • 1st & 5th – get out study guide and spend a few moments to study before the final • 4th – Get out study guide, Finals Review

6. May 14, 2012 No bell ringers this week • Turn in Final Draft of Olympics Paper • Get out Study Guide

7. ANNOUNCEMENTS/TO DO LIST • FOR MONDAY: Make sure your PowerPoint is • emailed to Mrs. Green, • saved on a thumb drive, • or saved to Commons by the time you walk into class on MONDAY • Print out your report before you come to class • If it is not printed out you will be docked 10 points

8. Bell Ringer May 11, 2012 Finals Review • Name of each of the following elements, and classify it as a metal, a nonmetal, or a metalloid: Na, Ca, Ti, As, Ar. • Turn in 4 bell ringers from this week

9. Bell Ringer may 10, 2012 No Bell Ringer, Mrs. Green absent

10. Bell Ringer May 9, 2012 Finals Review • Name the following ionic compounds: CaBr2, MgS.

11. Bell Ringer May 8, 2012 Finals Review • Explain the steps involved in converting the chemical potential energy in fossil fuels to electrical energy.

12. Bell Ringer May 7, 2012 Add to your April 30thbell ringer • Tell me three interesting facts about your Olympic event.

13. Bell Ringer May 1-4, 2012 • No Bell Ringers, working in Library on Summer Olympics project.

14. Bell Ringer April 30, 2012 • What event takes place in London this summer?

15. Bell Ringer April 27, 2012 • Describe how radiotracers can be used to diagnose medical problems. • Turn in 4 bell ringers from this week

16. Bell Ringer April 26, 2012 • What is your opinion about “green gasoline”?

17. Bell Ringer April 25, 2012 • No Bell Ringer, Mrs. Green absent

18. Bell Ringer April 24, 2012 • Name two devices used to detect radiation.

19. Bell Ringer April 23, 2012 • What is radioactivity?

20. Bell ringer April 20, 2012 • Why is there an Earth’s Day? • Turn in 5 bell ringers from his week • 5th – 4 bell ringers

21. Bell ringer April 19, 2012 • Describe alpha, beta and gamma particles.

22. Bell ringer April 18, 2012 • What is radioactivity?

23. 1st & 4th - Bell ringer April 17, 2012 • Describe an atom’s nucleus. • What is found inside the nucleus? • 5th – No Bell Ringer, Mrs. Green absent

24. Bell ringer April 16, 2012 • Describe an atom’s nucleus. • What is found inside the nucleus?

25. 1st & 4th 4/16/12 – Bell ringer • What is the relationship between energy and breaking or forming chemical bonds? • Turn in bellringers from last week if absent Friday. • Show me two sections of 23.4 notes when finished.

26. Bell ringer April 13, 2012 • What is activation energy? • Turn in 5 bellringers from this week when finished.

27. Bell ringer April 12, 2012 • What is the difference between an exergonic and endergonic reaction? • Exothermic and endothermic?

28. Bell Ringer April 11, 2012 • What is chemical kinetics?

29. 1st & 4th 4/11/12 – Bell ringer • What does a catalytic converter do?

30. Bell Ringer April 10, 2012 • Balance and identify the type of reaction • HCl + CaCO3 CaCl2+ H2O + CO2

31. 1st & 4th - 4/10/12 - Bellringer • Explain what is happening at a molecular level when energy is added or removed.

32. Bell Ringer April 9, 2012 • Tell me three things you did over Spring Break • Turn in 5 bell ringers from before Spring Break if you were absent 3/30

33. 3/30/12 • What is the activity series? • Turn in 4 bellringers when finished. • Come show me your 23.1-.3 notes when bell ringer is turned in!

34. 3/29/12 – Bell ringer • What is a precipitate?

35. 3/28/12– Bell ringer • How do chemists use chemical equations to show chemical changes?

36. Bell Ringer 3/27/12 • What do you do differently when naming ionic compounds vs. covalent compounds? • How can you tell if a compound is ionic or covalent?

37. 3/26/12 – Bell ringer • Give an example of the following reaction types: • Synthesis reaction • Decomposition reaction • Single displacement reaction • Double displacement reaction

38. 3/23/12 – Bell ringer • Why can’t you remove atoms from molecules/compounds to balance equations? (BESIDES the law of conservation) • Turn in 5 bell ringers from this week when finished.

39. 3/22/12 – Bell ringers • What is happening in this chemical reaction?

40. 3/21/12 – Bell ringer • Balance this equation: • H3PO4 + HCl → PCl5 + H2O

41. 3/20/12 – Bell ringer • Write an equation from the following: 3 units of Barium fluoride reacts with 6 units of Potassium hydroxide to produce/yield 3 units of Barium hydroxide and 6 units of Potassium fluoride

42. 3/19/12 – Bell ringer • Label the following as solid, gas, liquid, and aqueous at room temperature: • Oxygen • A solution • Mercury • Iron

43. 4th & 5th - 3/15/12 – Bell ringer • Water freezing or boiling is not chemical reaction. Why? • Turn in 4 bell ringers from this week

44. 1st 3/15/12 – Bell ringer • What kind of reactions can you think of? (Think outside the box!)

45. 4th & 5th - 3/14/12 – Bell ringer • What kind of reactions can you think of? (Think outside the box!)

46. 1st 3/14/12 – Bell ringer • How would you write the name of Cu2O? • How would you write the formula for lead (IV) oxide? • HINT – These are transition metals!

47. 4th & 5th - 3/13/12 – Bell ringer • How would you write the name of Cu2O? • How would you write the formula for lead (IV) oxide? • HINT – These are transition metals!

48. 1st 3/13/12 – Bell ringer • What confuses you most in this chapter? • Show Mrs. Green your notes from this chapter (22) when finished.

49. 5th - 3/12/12 – Bell ringer • What is the correct molecular formula for the compound, dinitrogenpentoxide? • What is the correct name for the compound, S2F10?

50. 4th 3/12/12 – Bell ringer • What confuses you most in this chapter? • Show Mrs. Green your notes from this chapter (22) when finished.