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.

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?

How do you process information best ?

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Multiple Intelligences by Howard GardnerWays in which we process information about our world.

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How do you process information best ?

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Hypothesis:

Scientific Method: Multiple Intelligences

Test your hypothesis with an experiment.

• Complete Multiple Intelligences Test

Student’s Multiple Intelligences Results

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

Student’s Multiple Intelligences Results

Ling./word

Logic/Math

Spatial/Visual

Music B-KHands-on

Inter-personal group

Intra-personal individual

Nature

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.

Student’s Multiple Intelligences

Conclusion:

1.State your results from the experiment.

2. Compare experimental results with your hypothesis.

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.

Airplane Lab• Objectives:

a.Scientific Method

b.Independent vs. Dependent Variable

c.Quantitative vs. Qualitative Data

d.Scientific Notation

e.Metric Conversions

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.

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

Experimental Data• Qualitative Data

data you observe thru your senses

• Quantitative Data

data that is measurable

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.

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

Metric Conversions

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

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?

Metric to Englishk h dk base d c m

d. Convert 15 kilometers to miles.

Class Results on Airplane FlightGroup # Airplane Model Average

Flight Distance

(cm)

1

2

3

4

5

6

7

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

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.

Factor Label Method

k h dk base d c m

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

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

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.

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 =

Density Lab Experimental Group Experimental Density Values

(g/mL)

Density and Temperature• D= mass/volume (Heart)

• Temperature commonly measured in 0C

K = 0C + 273: K= Kelvin

oC= degrees Celsius

Laboratory Rules• Homework: Please read over rules, sign, and

return.