classroom rules 1.students must be in the classroom when the bell rings. 2.bring all materials to...
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Classroom Rules1. 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.
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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?
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How do you process information best ?
nwlink.com
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Multiple Intelligences by Howard GardnerWays in which we process information about our world.
C2workshop.typepad.com
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How do you process information best ?
nwlink.com
Hypothesis:
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Scientific Method: Multiple Intelligences
Test your hypothesis with an experiment.
• Complete Multiple Intelligences Test
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Student’s Multiple Intelligences Results
How would you organize your results so you can interpret easily?
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Student’s Multiple Intelligences Results
Ling./word
Logic/Math
Spatial/Visual
Music B-KHands-on
Inter-personal group
Intra-personal individual
Nature
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Student’s 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.
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Student’s Multiple Intelligences
Conclusion:
1.State your results from the experiment.
2. Compare experimental results with your hypothesis.
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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.
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Airplane Lab• Objectives:
a.Scientific Method
b.Independent vs. Dependent Variable
c.Quantitative vs. Qualitative Data
d.Scientific Notation
e.Metric Conversions
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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.
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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
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Experimental Data• Qualitative Data
data you observe thru your senses
• Quantitative Data
data that is measurable
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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.
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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
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Metric Conversions
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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
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Metric to Englishk h dk base d c ma. How many meters are in a 100 yard football field?
b.How many centimeters are in 2 feet ?
c. Convert 4 pounds (lbs.) to milligrams?
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Metric to Englishk h dk base d c m
d. Convert 15 kilometers to miles.
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Class Results on Airplane FlightGroup # Airplane Model Average
Flight Distance
(cm)
1
2
3
4
5
6
7
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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
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Measurement Conversions
Density = mass/volume
K = 0C + 2730C = 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.
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Factor Label Method
k h dk base d c m
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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?
a. 3
b. 3.0
c. 3.00
d. 3.000
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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
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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.
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Bell Ringer: Calculations with Measurements
1. 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 =
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Density Lab Experimental Group Experimental Density Values
(g/mL)
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Density and Temperature• D= mass/volume (Heart)
• Temperature commonly measured in 0C
K = 0C + 273: K= Kelvin
oC= degrees Celsius
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Laboratory Rules• Homework: Please read over rules, sign, and
return.