Classroom Rules

1
Classroom Rules

1. Students must be in the classroom when the bell
   rings.
2. Bring all materials to class with you. (paper,
   pencil/pen, assignments, and resources)
3. Students must raise hand before getting up out of
   seat or answering a question.
4. Assignments must be placed in tray when
   requested.
5. Teacher will dismiss class not the bell.

2
Bell Ringer Scientific Method

1. What are the steps to the scientific method?
2. Why do scientists use the scientific method?
3. How have you used the scientific method outside
   of science?

3
How do you process information best ?
nwlink.com
4
Multiple Intelligences by Howard GardnerWays in
which we process information about our world.
C2workshop.typepad.com
5
How do you process information best ?
Hypothesis
nwlink.com
6
Scientific Method Multiple Intelligences

• Test your hypothesis with an experiment.
• Complete Multiple Intelligences Test

7
Students Multiple Intelligences Results

• How would you organize your results so you can
  interpret easily?

8
Students Multiple Intelligences Results
Ling./ word Logic/ Math Spatial/ Visual Music B-K Hands-on Inter- personal group Intra- personal individual Nature

9
Students Multiple Intelligences Results

• Illustrate your results from table in a graph. (
  bar graph).
• Make sure that table and graph have a title.
• Create a legend for graph. If bar graph label x
  and y axis.

10
Students Multiple Intelligences

• Conclusion
• State your results from the experiment.
• 2. Compare experimental results with your
  hypothesis.

11
Scientific Skills Objectives

• I can identify the importance of the scientific
  method and apply it to real world applications.
• I can understand the difference between precision
  and accuracy.
• I can compare the difference between qualitative
  and quantitative results.
• I can convert quantitative results using metric
  and english conversions.
• I can express large and short numbers using
  scientific notation.

12
Airplane Lab

• Objectives
• Scientific Method
• Independent vs. Dependent Variable
• Quantitative vs. Qualitative Data
• Scientific Notation
• Metric Conversions

13
Laboratory Objectives

• Students will be able to recognize and apply the
  correct lab equipment for each lab.
• Students will be able to measure and analyze
  experimental data correctly.

14
Experimental Design

• 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

15
Experimental Data

• Qualitative Data
• data you observe thru your senses
• Quantitative Data
• data that is measurable

16
Accuracy vs. Precision

• Accurate Results
• When one compares the avg. expt. data with the
  actual value.
• Precise Results
• When one compares expt. trials with one another.
  

17
Quantitative Measurements

• Scientific Notation
• To abbreviate very large or very small
  measurements.
• 0.0025cm 2.5 x10-3 cm
• 250 cm 2.50 x102 cm

18
Metric Conversions
19
Metric Conversions

• k ? h ? dk ? base ? d ? c ? m
• Convert 0.0748 m to cm
• 0.00748 cm
• Convert 0.0048 kg to g
• 4.8 g

20
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?

21
Metric to English

• k ? h ? dk ? base ? d ? c ? m
• d. Convert 15 kilometers to miles.

22
Class Results on Airplane Flight
Group Airplane Model Average Flight Distance (cm)
1
2
3
4
5
6
7
23
Lab Experiments

• Background Terminology
• Independent vs. Dependent Variables
• Qualitative vs. Quantitative Data
• Accuracy vs. Precision
• Measurement Conversions
• (scientific notation, metric, and metric to
  english)
• New Terminology
• -Significant Figures

24
Measurement Conversions

• Density mass/volume
• K 0C 273
• 0C K 273
• 1 m 1.09 yd
• 2.54 cm 1.0 in.
• 1.0 km 0.62 mi.
• 1.0 mi. 5,280 ft
• 454 g 1.0 1b.

25
Factor Label Method

• k ? h ? dk ? base ? d ? c ? m

26
Significant Figures

• Significant Figures The certain numbers in a
  measurement plus the first estimated number.
• Which of the following measurements is most
  precise and why?
• 3
• 3.0
• 3.00
• 3.000

27
Measurement Lab

• How do scientists limit the degree of uncertainty
  in a measurement?
• Appropriate instrument
• Repeat expt. trials for precision and accuracy
• Observing significant figures
• Purpose Establish a relationship between
  significant figures and accuracy

28
Calculating Measurements

• Multiplying and Dividing
• The of significant figures in the answer is the
  same as the measurement with the least number of
  significant figures.
• Addition and Subtraction
• The of significant figures in the answer is the
  same as the measurement with the least number of
  decimal places.

29
Density Lab
Experimental Group Experimental Density Values (g/mL)







30
Density Lab
31
Scientific Skills Review
32
Density and Temperature

• D mass/volume (Heart)
• Temperature commonly measured in 0C
• K 0C 273 K Kelvin
• oC degrees
  Celsius

33
Bell Ringer Calculations with Measurements

• Calculate the following measurements with .the
  correct number of significant figures
• a. 8.3 m x 0.0020 m
• b. 4.10 g 3.4g 8g

34
Laboratory Rules

• Homework Please read over rules, sign, and
  return.