1. Chemistry I: 8/12/13 Objectives: Turn lab safety illustration in tray.
Bell Ringer: Classroom Rules/Discipline
Address Lab Safety Rules.
Homework:
Look over lab safety rules.
Complete lab safety scenarios.
Lab Safety Test tomorrow.

2. Chemistry I: Bell Ringer
What are Ms. Leeper’s classroom rules?
If you disrupt class what are Ms. Leeper’s disciplinary actions?
a. What does S.W.A.M.P stand for?
b. Give an example of how you can implement each letter in Ms. Leeper’s class daily.
*When completed place in appropriate tray.*

3. Classroom Rules Students must be in class when the bell rings.
Bring all materials to class with you.
Students must raise hand before talking or getting up out of seat.
Assignments must be placed in tray when requested for full credit.
A hall pass must be used to leave class.
Food, drinks, and bottled water must be disposed of properly before leaving class.
Electronic devices are only permitted for specific assignments.
8. Academic dishonesty will NOT be tolerated.
9. Students must follow lab procedures at all times.

4. Disciplinary Actions
What are the consequences of violating Ms. Leeper’s rules? First Offense: Vebal warning Second Offense: classroom referral, afternoon detention, and parent notification Third Offense: Office referral and parent meeting. Exception to step-by step consequences: Academic dishonesty Gum on furniture/equipment Extremely harmful disrespect and disregard to instructors/peers.

5. Chemistry I : Lab Safety Rules
Discuss lab safety rules.
Watch lab safety video clip.
Complete lab safety scenarios.
Lab Safety Test tomorrow.

6. Chemistry I: 8/13/13 Objectives:
Turn in Safety Lab Illustration (deduction)
Address Lab Safety Packet
Watch Lab Safety Video
Take Lab Safety Test
Introduce Graduate Cylinder Lab
Homework: Read Graduated Cylinder Lab

7. Chemistry: 8/14/13 Objectives:
Measure, graph, and analyze data from graduated cylinder lab.
Homework:
Graph data from lab.

8. Chemistry I: 8/15/16 Objectives: Analyze data from graph.
Address density
Distinguish between accuracy and precision.
Homework:
Scientific Skills worksheet qts. 1

9. Interpreting Graphs: Slope
Slope= rise/ run
(y2-y1)/(x2-x1)

10. Chem I: 8/16/13 Objectives: Assess graphing techniques from homework
Distinguish between accuracy and precision.
Identify and apply significant figures in data analysis.
Homework:
Scientific Skills Worksheets
(qts. 2-4 on front pg, front of second pg. )

11. Experimental Variables
Independent variable
variable “I” control in the experiment.
Always plot on x-axis
Dependent Variable
variable depends on the independent variable
Always plot on y-axis

12. Scientific Skills Graph With data from qts
Scientific Skills Graph With data from qts. from scientific skills packet, we need to use quadrant IV’s set-up on our graph.
math.about.com

13. Scientific Skills Graph

14. Types of Experimental Results
Qualitative Results: (quality)
Quantitative Results:(quantity)

15. Types of Experimental Results
Qualitative Results: (quality)
What we observe thru our senses.
What we see, smell, hear, or sometimes even taste.
Subjective data, questionable data.
Quantitative Results:(quantity)
Data involving numbers
Usually measurements
Definitive data, cannot argue with and so is the most important type of data collected by a scientist.

16. Analyzing Quantitative Data
Precision :
Accuracy:

17. Accuracy vs. Precision
Accurate Results:
When you compare your results with a true value.
Precise Results:
When you compare your experimental results with one another.

18. Significant Figures Significant Figures:
Definite numbers plus the first estimated number in the measurement.
The numbers must be directly related to the object’s measurement, not serve as placeholders.
Importance of significant figures?
Determines the degree of accuracy for a measurement.

19. Significant Figures in Measurements
All nonzero numbers are significant.
Zeros in between nonzero numbers are significant.
3. Leading zeros are NOT significant. Only serve as placeholders.
4. Trailing zeros are significant IF they have a decimal point in the measurement.

20. Significant Figures in Measurements
All nonzero numbers are significant.
Ex. 234 g = 3 significant figures (sig. figs)
Zeros in between nonzero numbers are significant. Ex. 2,034 g = 4 sig. figs.
3. Leading zeros are NOT significant. Only serve as placeholders. Ex = 3 sig. figs
4. Trailing zeros are significant IF they have a decimal point in the measurement.
Ex g = 4 sig. figs.

21. Significant Figures in Measurements
All nonzero numbers are significant.
Ex. 234 g = 3 significant figures (sig. figs)
Zeros in between nonzero numbers are significant. Ex. 2,034 g = 4 sig. figs.
3. Leading zeros are NOT significant. Only serve as placeholders. Ex = 3 sig. figs
4. Trailing zeros are significant IF they have a decimal point in the measurement.
Ex g = 4 sig. figs.

22. Chem I : 8/19/13 Objectives: Turn in graph from qts.one only.
I can express measurements in scientific notation.
I can determine the number of significant figures in a measurement.
I can calculate using significant figures.
Homework:
Check Infinite Campus-updated grades.
Complete Scientific Skills packet

23. ICP : 8/19/13 Objectives: Turn in graph from qts.one only.
I can express measurements in scientific notation.
I can determine the number of significant figures in a measurement.
I can calculate using significant figures.
Homework:
Check Infinite Campus-updated grades
Complete Scientific Skills packet.

24. Scientific Measurement: Bell Ringer
What would be an example of a qualitative and quantitative observation from the experiment in qts. one.
What is the density of carbon with a mass of
56.7 grams and a volume of 25.0 cm3
3. How many significant figures are in each measurement below:
g. b.3,020g c g d. 1.00x104 g
4. Express the following measurements in scientific notation.
300,000,000m/s (speed of light)
m (equal to one nanometer)

25. Scientific Measurement: Bell Ringer
What would be an example of a qualitative and quantitative observation from the experiment in qts. one.
2. What is the density of carbon with a mass of
56.7 grams and a volume of 25.0 cm3
3. How many significant figures are in each measurement below:
g. b.3,020g c g d. 1.00x104 g

26. Scientific Measurement: Bell Ringer
4. Express the following measurements in scientific notation.
300,000,000m/s (speed of light)
m (equal to one nanometer)

27. Scientific Notation Scientific Notation
To abbreviate very large or very small measurements.
Move decimal point until measurement is between 1 and 10.
standard measurements >1 have a positive exponent.
standard measurements < 1 have a negative exponent.
Ex.
5,000 g = 5.0x103 g
m = 4.56x10-2 m

28. Chem I : 8/20/13
Objectives:
I can calculate using significant figures.
Introduce Measurement Lab
Homework:
Check Infinite Campus-updated grades.
Bring calculators
Complete Sig. Figs. Wksht
Read thru and complete pre-lab qts. for lab.

29. ICP : 8/20/13 Objectives: I can calculate using significant figures.
Introduce Measurement Lab
Homework:
Check Infinite Campus-updated grades.
Bring calculators
Complete Sig. Figs. Wksht
Read thru measurement lab.

30. Calculating with Measurements
“Your only as good as your weakest link.”
An answer from a calculation involving measurements, can only be as accurate (good) as the weakest measurement in the calculation.

31. Calculating with Sig. Figs.
1. Multiplying and Dividing:
The # of sig. figs. in the answer must be equal to the # of sig. figs. in the weakest (least accurate) measurement.
2. Addition and Subtraction:
The # of decimal places in the answer must be equal to the # of decimal places in the weakest measurement (least accurate).

32. Calculating with Sig. Figs.

33. Chem I : 8/21/13 Objectives: Review Sig. Fig. calculations
Complete Measurement Lab
Homework:
Complete post-lab questions.
Review notes, wkshts., and bell ringer for quiz tomorrow.

34. Sig. Figs. and Measurements

35. Measurement Lab Purpose:
Practice measuring (definite numbers plus first estimated number)
Apply significant figures with measurements.

36. ICP : 8/21/13 Objectives: Review Sig. Fig. calculations
Complete Measurement Lab
Homework:
Complete post-lab questions.
Review notes, wkshts., and bell ringer for quiz tomorrow.

37. Measurement Lab Purpose:
Practice measuring (definite numbers plus first estimated number)
Apply significant figures with measurements.

38. Chem I: 8/22/13
Objectives:
Bell Ringer: Scientific Notation and Sig. Figs.
Analyze Measurement Lab Results
I can convert between units in a measurement.
Homework:
Scientific Measurement Review Wksht.
Scientific Measurement Quiz

39. Chem ICP: 8/22/13 Objectives:
Bell Ringer: Scientific Notation and Sig. Figs.
Analyze Measurement Lab Results
I can convert between units in a measurement.
Homework:
Scientific Measurement Review Wksht.
Scientific Measurement Quiz

40. Bell Ringer: Scientific Measurements
1. How many sig. figs are in each measurement below?
g b x1028
Express the answer to the correct accuracy.
5.4 g g = b g x g =
3. Convert each to scientific notation:
a mL b. 130,000 mi.
4. Convert each to standard notation:
a x b. 8.2x105

41. Bell Ringer: Scientific Measurements
1. How many sig. figs are in each measurement below?
g (4) b x1028 (3)
Express the answer to the correct accuracy.
5.4 g g = 8.6g b g x g =0.26g2
3. Convert each to scientific notation:
a mL = 3.5x10-3mL b. 130,000 mi.= 1.3x105
4. Convert each to standard notation:
a x10-3 m = m b. 8.2x105m = 820,000m

42. Measurement Lab Analyze Data:
Does your quantitative data prove that the best instrument yields the most accurate measurement (most sig. figs)? If not you need to re-check your measurements in the lab.

43. Metric Conversions

44. Chem I: 8/23/13 Objectives: Scientific Measurement Quiz
Analyze Measurement Lab Results
I can convert between units in a measurement.
Homework:
Scientific Measurement Review Wksht.

45. Chem I: 8/23/13 Objectives: Scientific Measurement Quiz
Measurement Lab
I can convert between units in a measurement.
Homework:
Post Lab questions
Scientific Measurement Review Wksht.

46. Metric to English k  h  dk  base  d  c  m
a. How many meters are in a 100 yard football field?
How many centimeters are in 2 feet ?
c. Convert 4 pounds (lbs.) to milligrams?

47. Metric to English k  h  dk  base  d  c  m
d. Convert 15 kilometers to miles.

48. Scientific Measurement Conversions

49. Chem I: 8/26/13 Objectives: Turn in Measurement Lab with post-lab qts.
Evaluate Scientific Measurement Quiz
Measurement Conversion Lab
Homework:
Scientific Measurement Review Wksht.
Scientific Measurement Test (Wed.)

50. Chem I: 8/26/13 (3rd ) Objectives: Assess and complete Measurement Lab
Evaluate Scientific Measurement Quiz
Measurement Conversion Lab
Homework:
Scientific Measurement Review Wksht.
Scientific Measurement Test (Wed.)

51. ICP: 8/26/13 Objectives: Turn in Measurement Lab with post-lab qts.
Evaluate Scientific Measurement Quiz
Measurement Conversion Lab
Homework:
Scientific Measurement Review Wksht.
Scientific Measurement Test (Wed.)

52. Scientific Measurement Review

53. Scientific Measurement Review
Gallery Walk Review:
Independent vs. Dependent Variable
Graphing Techniques
Density
Qualitative vs. Qualitative Data
Accuracy vs. Precision
Significant Figures (measurement/calculations)
Measurement conversions (metric/english)