1. The Scientific Method

2. August 31: BELL RINGER Write the following definition into your Interactive Notebook, then copy & complete the statement below. Qualitative Data- description of nature using words Quantitative Data- description of nature using numbers “The plant grew 4 inches with 2 oz. of water each day” is an example of __________________ data. (qualitative or quantitative)

3. Question-
Observe a problem or situation in the world and form a question. “I wonder what would happen if…”

4. Hypothesis
Research to make an educated prediction that answers the question “If... Then…”

5. Experiment
Test the hypothesis by making a plan, conducting a test and record results

6. Make careful observations of the test and write down the results
Observe and Record
Make careful observations of the test and write down the results

7. Analyze/Form Conclusion
Use information to draw conclusion about your hypothesis
“I accept my Hypothesis because”
“I reject my Hypothesis because”
… Finding out your hypothesis was wrong is not a bad thing, it is getting rid of a possibility which takes you a step closer to the answer, alter your experiment and try again.

8. Share Results
Explain your results in writing or in a presentation so that the new information can be shared will all of humanity

9. Method of Science https://www.youtube.com/watch?v=vtr4KX8dwuQe
Science- process that uses observation and investigation to gain knowledge about events in nature
Scientific Method- an organized set of investigation procedures used by scientists
Hypothesis- educated prediction or testable question

10. Method of Science
Experiment- organized procedure for testing hypothesis
Control- Standard for comparison
Constant- Factor that doesn’t vary in an experiment
Independent Variable- Factor that is adjusted by the experiment (x-axis)

11. Method of Science
Dependent Variable – Factor which value depends on the independent variable (Y-Axis)
Scientific Law vs Scientific Theory
Rule of Nature that sums Explanation based on experiments
Up related observations - most logical explanation of event
To describe a pattern in
nature

12. Standards of Measurement https://www.youtube.com/watch?v=q2L5_swAT5A
International System of Units (SI)- Standard system of measurement used worldwide
SI Base Units
Quantity measured
Units
Symbol
Length
Meter m
Mass
Grams g
Time
Second S
Electrical current
Ampere A
Temperature
Kelvin K
Amount of substance
Mole
mol
Intensity of light
Candela cd

14. Standards of Measurement
Common SI Prefixes
Prefix
Symbol
Multiplying Factor
Kilo K
1,000
Deci d
0.1
centi c
0.01
milli m
0.001
micro  μ
Nano n

15. Standards of Measurements
Length- distance between two points
Volume- amount of space occupied by an object
Mass- Amount of matter in an object
Density- Mass per unit volume of a material
Time- interval between two occurring events

16. Graphing https://www.youtube.com/watch?v=f_J8QU1m0Ng

17. Graphing

18. Graphing

19. Graphing https://www.youtube.com/watch?v=p0quM2txQwg

20. Work on your graphs

21. Scientific Terms Observation vs Inference
Observation- using one or more of your senses to identify or learn something
Inference- conclusion formed from available information or evidence

22. Explanation vs Description
Explanation - a statement or account that makes something clear. Tells why something is the way it is
Description- summary of observations. Tells What something is

23. Qualitative vs Quantitative
Qualitative Data- description of nature using words
Example: this tree is green
Quantitative Data- description of nature using numbers
Example: this tree is 10 meters tall

24. Precision vs Accuracy
Precision- how closely measurements are to each other and how carefully measurements were made
Example: Each time I measure my height I am always 5’9:
Accuracy- the degree to which the result of a measurement, calculation, or specification conforms to the correct value or a standard.
Example: I am almost 6 feet- not accurate 
        I am exactly 5’9 ½” - accurate