1. *phone and backpack behind my desk
SCIENTIFIC METHOD
Good morning!
*phone and backpack behind my desk
*all you need is your notebook and pen/pencil

2. Bellringer (write on the left hand side)
Write the instruction for making a peanut butter and jelly sandwich on a sheet of paper

3. Tada! The Five Steps of the Scientific Method
Everyday Science
Scientific Method in everyday life
Car will not start =____________
Out of gas? = _________________
Adding gas and seeing if car starts = ___________________________
Car doesn’t start = _____________
It wasn’t out of gas = _____________________________ (disproves hypothesis this time)
Tada! The Five Steps of the Scientific Method

4. Tada! The Five Steps of the Scientific Method
Everyday Science
Scientific Method in everyday life
Car will not start =____________
Out of gas? = _________________
Adding gas and seeing if car starts = ___________________________
Car doesn’t start = _____________
It wasn’t out of gas = _____________________________ (disproves hypothesis this time)
Tada! The Five Steps of the Scientific Method
what you see
(OBSERVATION)
an idea, explanation
(HYPOTHESIS)
testing your idea
(EXPERIMENT)
what happened, results
(DATA)
what you learned
(ANALYZE DATA TO MAKE CONCLUSION)

5. NOTE TO STUDENT
ANY NOTE YOU COPY FROM THE BOARD GOES ON THE LEFT HAND SIDE OF YOUR NOTEBOOK!!!!
Glue in your notes on the left side of your notebook

6. Scientific Method
1. Observation: Notice there is a problem or question to be answered
2. Hypothesis: Scientific Explanation
(an If...Then… statement)
3. Experiment: Test your hypothesis
4. Data: Collect information
-5. Analyze Data
6. Modify if needed or Communicate Results

7. Experiment
Control: used to compare experimental results. Does not receive any experimental treatment/changes
Variable: Factor changed during experiment
Independent Variable: What is changed. Will affect the outcome of the experiment
Dependent Variable: Results of the experiment

8. Data
X axis: Independent Variable
Y axis: Dependent Variable

9. Qualitative vs Quantitative Data
Quantitative → Quantity
Quantitative:
Deals with numbers.
Data which can be measured.
Length, height, area, volume, weight, speed, time, temperature, humidity, sound levels, cost, members, ages, etc.
Qualitative → Quality
Qualitative:
Deals with descriptions.
Data can be observed but not measured.
Colors, textures, smells, tastes, appearance, beauty, etc.

10. Analyze Results
What does your data mean? Was your hypothesis supported?
If results are support hypothesis, communicate and publish results.
2. If results are not consistent with hypothesis, modify experiment.

11. Conclusion 1. Experiment must be repeatable. 2. Theory versus Law
-Theory is subject to change as more knowledge is gained. “Theory of Evolution”
-Laws are universally accepted to be true. “Law of Gravity”

12. Law vs Theory
Law- Well supported explanations/principle that appears to be without exception at the time it is made.
Ex.: Law of Gravity
Theory- A scientific theory summarizes a hypothesis or group of hypotheses that have been supported with repeated testing.
Law of conservation of energy
Law of conservation of mass
Theories: no one was actually there to observe it happen (the big bang), or you cannot test every single living thing (cell theory)
Ex.: The Big Bang Theory
The Cell theory

13. Everyday Science Scientific Method in everyday
Car will not start =Observation
Out of gas? = Hypothesis
Adding gas and seeing if car starts = Experiment
Car doesn’t start = Data/Results
It wasn’t out of gas =Conclusion/ Revise (disproves hypothesis this time)

14. Vocabulary A hypothesis is a tentative explanation of a phenomenon;
Independent or manipulated variable – what is changed during the experiment
Dependent or responding variable – what is measured
Constant or fixed variables –parts in the experiment that are kept constant.
Experimental group – group exposed to the independent variable.
Control group – used to compare against the experimental group

15. WE DO:
Alka-Seltzer Experiment

16. Independent Practice Finish working on your lab report by yourself.
You must do so quietly and independently.
You may use your notes to help you.
This activity will count as a grade.

17. EXIT TICKET
PUT EVERYTHING AWAY
WORK QUIETLY ON THE EXIT TICKET