1. Bell Ringer Wednesday September 11th
Name as many of the steps of the Scientific Method as you can
HW #2 DUE FRIDAY

3. Creating Lab Reports

4. Bell Ringer Thursday September 12th
Explain why you think it is important for scientists to use the Scientific Method.
Give 2 reasons why creating a lab report is important
HW #2 DUE TOMORROW

5. 5 minutes to finish LAB REPORT

6. THE NATURE OF SCIENCE AND THE SCIENTIFIC METHOD
What is Science?
How is Science Done?

7. SCIENCE IS: a way of understanding the natural world
based on our senses
exploration

8. SCIENCE ASKS: What’s there? How does it work?
How did it come to be this way?

9. SCIENCE IS DONE By EVERYONE, EVERYDAY to develop new knowledge
using the SCIENTIFIC METHOD

10. The Scientific Method
The Scientific Method is the only scientific way accepted to back up a theory or idea.

12. Friday, September 13th Bellringer
1. What are the 6 steps of the Scientific Method
TURN IN YOUR HOMEWORK

13. The Scientific Method involves:
Observation
Question (Problem)
Hypothesis
Experiment/ Collect Data
Result
Conclusion

14. The Scientific Method
Observation- We use our senses to gather information about the world around us.
AH—Look at this!

15. Qualitative Observations
Color, shape, feel, taste, sound.
EXAMPLES:
Miso has black and white fur
Miso is on a blue igloo

16. Quantitative Observations
Quantity: How many. Will always have a number.
Based on exact measurement.
EXAMPLES:
The Guinea Pig has 2 ears.
There is 1 Guinea Pig.

17. TIME FOR SOME PRACTICE

18. Friday, September 13th Bellringer
For the following image do the following:
1. Write down 2 Qualitative Observations
2. Write down 2 Quantitative Observations
TURN IN YOUR HOMEWORK

19. Question- You ask a question about what you observe.
The Scientific Method
Question- You ask a question about what you observe.
State the problem or question.

20. Created from observations, inferences, and predictions made by you
The Scientific Method
-An educated guess
Created from observations, inferences, and predictions made by you
Hypothesis

21. INFERENCE? HYPOTHESIS? OR PREDICTION?
explanation based on observations
guess at what will happen based on prior experience
INFERENCE
- TESTABLE explanation
-guides an experiment
PREDICTION
HYPOTHESIS

22. explanation that guides an experiment
TESTABLE
explanation that guides an experiment
HYPOTHESIS

23. Bell Ringer Monday September 16th
** for each statement below write a testable HYPOTHESIS using the IF…Then… format**
______________________________________________________________________
My satellite tv is not working.
I am always late for school.

24. How do we write a Hypothesis?
Use “If”, “Then” format
If we drop a ball from a higher height, Then it will bounce higher.
“If” is the manipulated variable. (Independent)
“Then” is the responding variable. (Dependent)

25. Some plants are taller than others
An Example
OBSERVATION
Some plants are taller than others
HYPOTHESIS If fertilizer is added to a corn plant then it will grow taller than a corn plant without fertilizer
PROMPT: WANT TO TEST FERTILIZER
CONTROL: NO FERTILIZER
EXP GROUP: FERTILIZER

26. TIME FOR SOME PRACTICE

27. Bell Ringer Monday September 16th
** for each statement below write a testable HYPOTHESIS using the IF…Then… format**
______________________________________________________________________
My satellite tv is not working.
I am always late for school.

28. How do we write a Hypothesis?
Use “If”, “Then” format
If we drop a ball from a higher height, Then it will bounce higher.
“If” is the manipulated variable. (Independent)
“Then” is the responding variable. (Dependent)

29. The Scientific Method
Experiment/ Collect Data- You figure out a way to test your hypothesis .
The outcome must be measurable
Record and analyze data.

30. receives independent variable receives “normal” treatment
DESIGN AN EXPERIMENT
A controlled experiment is a comparison of two or more groups with one difference between the groups
EXPERIMENTAL GROUP
receives independent variable
CONTROL GROUP
receives “normal” treatment
Corn will receive:
sunlight
water
soil
Corn will receive:
sunlight
water
soil
fertilizer
PROMPT: WANT TO TEST FERTILIZER
CONTROL: NO FERTILIZER
EXP GROUP: FERTILIZER

31. VARIABLES CONSTANT VARIABLE: factors that stay the same
sunlight, water, soil
CONSTANT VARIABLE: factors that stay the same
INDEPENDENT VARIABLE: the difference between the groups; the factor manipulated (changed) by the experimenter
fertilizer
INDPEPENDENT: FERTILIZER
DEPENDENT: PLANT HEIGHT
DEPENDENT VARIABLE: the measured result of the experiment; the factor that responds to the change
plant height

32. TIME FOR SOME PRACTICE

33. Bell Ringer -------------Tuesday September 17th
You decide to clean the bathroom. You notice that the shower is covered in a strange green slime. You decide to try using lemon juice to get rid of this slime. You spray half of the shower with lemon juice and spray the other half of the shower with water. After 3 days of “treatment”, there is no change in the appearance of the green slime on either side of the shower.
What is the Independent Variable? (you have control over this)
What is the Dependent Variable? (What are you measuring?)(This is the DATA you are collecting)
What is the control group?
What is the experimental group?
What are the constant variables in this example?

34. Bell Ringer -------------Wednesday September 18th
SpongeBob noticed that his favorite pants were not as clean as they used to be. His friend Sandy told him that he should try using Clean-O detergent, a brand of laundry soap she found at Sail- Mart. SpongeBob made sure to wash one pair of pants in plain water and another pair in water with the Clean-O detergent. After washing both pairs of pants a total of three times, the pants washed in the Clean-O detergent did not appear to be any cleaner than the pants washed in plain water.
What is the Independent Variable? (you have control over this)
What is the Dependent Variable? (What are you measuring?)(This is the DATA you are collecting)
What is a hypothesis that SpongeBob can test?
What is the control group?
What is the experimental group?

35. The Scientific Method involves:
Observation
Question (Problem)
Hypothesis
Experiment/ Collect Data
Result
Conclusion

36. Result- You do the experiment using the method you came up with and
The Scientific Method
Result- You do the experiment using
the method you came up with and
record the results. You repeat the
experiment to confirm your
results by retesting.

37. The Scientific Method Make a CONCLUSION (explanation based on data)
State Conclusion- Does the data support or refute the hypothesis?
Make a CONCLUSION (explanation based on data)
Are there any ERRORS (sources of mistakes)?
Is there a way to improve the experiment?

38. Experiment & Collect Data
DATA / EVIDENCE: “raw” or unprocessed measurements from the experiment
QUALITATIVE: (subjective): descriptive data, uses words, pictures
QUANTITATIVE: (objective): numerical data, from instruments
Height of corn with fertilizer was taller than control group
QUALITATITVE: taller, bigger, short, no growth
QUANTITATIVE: any numerical change like 2cm taller, 0 cm growth
Height of corn with fertilizer averaged 2 cm taller than control group

39. RESULTS & ANALYSIS What does your data mean?
RESULTS: evidence from experiment; organization of data
Tables, graphs, visual representation of data
This is to be very objective – no commentary

40. WHAT NOW???? MODEL: graphical explanation or representation
After several experiments have been done, Scientists SHARE their findings and/or develop…
MODEL: graphical explanation or representation
THEORY: a well-tested hypothesis that is has not been proven wrong; generally accepted to be “correct,” unless disproven
LAW: a predictable relationship that is accepted as fact
MODEL: ATOMIC STRUCTURE
THEORY: EVOLUTION
LAW – usually means formula; PRINCIPLES – usually more general
LAW/Principle often used interchangeably
BIG IDEA: CREATE NEW KNOWLEDGE AND TELL OTHERS