1. The Scientific Method

2. The Scientific Method involves a series of steps that are used to solve problems.

3. What is the scientific method?
The Scientific Method involves a series of steps that are used to solve problems.
Scientific method
- steps used to solve problems

4. What is the scientific method?
state the problem
gather info/research problem
form a hypothesis –
Experiment –
record & analyze –
conclude – summary of the data from the experiments,
repeat as needed
Scientific method

6. Observation/Research Formulate a Hypothesis Experiment
Scientific Method
Problem/Question
Observation/Research
Formulate a Hypothesis
Experiment
Collect and Analyze Results
Conclusion
Communicate the Results/Repeat

7. Steps of the Scientific Method
Problem/Question:
identify a question or problem that can be solved through experimentation.
What are we concerned with

8. What is the scientific method?
state the problem
what are we concerned with,
id the problem

9. Steps of the Scientific Method
2. Gather information/Research:
Make observations and research/think about your topic

10. What is the scientific method?
state the problem
what are we concerned with,
id the problem
gather info/research problem
observe,
think

11. Do you remember the next step?

12. Steps of the Scientific Method
3. Formulate a Hypothesis:
Predict a possible answer to the problem or question.
Educated guess
Example: If soil temperatures rise, then plant growth will increase.

13. What is the scientific method?
state the problem
what are we concerned with,
id the problem
gather info/research problem
observe,
think
form a hypothesis –
suggest answer,
educated guess,
Ex. If … then …

14. Steps of the Scientific Method
Experiment:
Develop and follow a procedure to test hypothesis.
Lab experiment OR
Natural observation

15. Steps of the Scientific Method
Experiment:
control- part which does not change
Constant – part that is the same for all experiments
variable – factor being tested
independent – factor adjusted by experimenter
dependent – factor that depends on the value of the independent
experimental setup – part of the experiment that contains the variable

16. What is the scientific method?
state the problem
what are we concerned with,
id the problem
gather info/research problem
observe,
think
form a hypothesis –
suggest answer,
educated guess,
Ex. If … then …
Experiment –
organized process used to test hypothesis
lab experiment, natural observations

17. What is the scientific method?
4. Experiment –
organized process used to test hypothesis
lab experiment, natural observations
control- part which does not change
constant – part that is the same for all parts of the experiment/trials
variable – factor being tested
independent – factor adjusted by experimenter
dependent – factor that depends on the value of the independent
Thing measured
experimental setup – part of the experiment that contains the variable

18. Steps of the Scientific Method
5. Record and Analyze Results:
Record all data – observations and measurements recorded during an experiment
Write it ALL down

19. What is the scientific method?
state the problem
what are we concerned with,
id the problem
gather info/research problem
observe,
think
form a hypothesis –
suggest answer,
educated guess,
Ex. If … then …
Experiment –
organized process used to test hypothesis
lab experiment, natural observations
record & analyze –
data – observations and measurements recorded during experiment

20. Steps of the Scientific Method
6. Conclusion:
Include a statement that accepts (agrees with) or rejects (disagrees with) the hypothesis.
Make recommendations for further study and possible improvements to the procedure.

21. What is the scientific method?
state the problem
what are we concerned with,
id the problem
gather info/research problem
observe,
think
form a hypothesis –
suggest answer,
educated guess,
Ex. If … then …
Experiment –
organized process used to test hypothesis
lab experiment, natural observations
record & analyze –
data – observations and measurements recorded during experiment
conclude – summary of the data from the experiments,

22. Steps of the Scientific Method
7. Repeat as needed:
Either because the hypothesis was wrong or because you asked another question.

23. What is the scientific method?
state the problem
what are we concerned with,
id the problem
gather info/research problem
observe,
think
form a hypothesis –
suggest answer,
educated guess,
If … then…
Experiment –
organized process used to test hypothesis
lab experiment, natural observations
record & analyze –
data – observations and measurements recorded during experiment
conclude – summary of the data from the experiments,
repeat as needed

24. Think you can name all steps?
Collect and Analyze Results
Formulate a Hypothesis
Observation/Research
Repeat as Needed
Problem/Question
Experiment
Conclusion

25. What is the scientific method?
state the problem
what are we concerned with,
id the problem
gather info/research problem
observe,
think
form a hypothesis –
suggest answer,
educated guess,
Ex. If … then …
Experiment –
organized process used to test hypothesis
lab experiment, natural observations
record & analyze –
data – observations and measurements recorded during experiment
conclude – summary of the data from the experiments,
repeat as needed

26. Let’s put our knowledge of the Scientific Method to a realistic example that includes some of the terms you’ll be needing to use and understand.

27. She explains that yeast releases a gas as it feeds on sugar.
Problem/Question
John watches his grandmother bake bread. He ask his grandmother what makes the bread rise.
She explains that yeast releases a gas as it feeds on sugar.

28. Problem/Question
John wonders if the amount of sugar used in the recipe will affect the size of the bread loaf?

29. Observation/Research
John researches the areas of baking and fermentation and tries to come up with a way to test his question.
He keeps all of his information on this topic in a journal.

30. Formulate a Hypothesis
After talking with his teacher and conducting further research, he comes up with a hypothesis.
“If more sugar is added, then the bread will rise higher.”

31. Note: These variables will be defined in the next few slides.
Hypothesis
The hypothesis is an educated guess about the relationship between the independent and dependent variables.
Note: These variables will be defined in the next few slides.

32. Experiment
His teacher helps him come up with a procedure and list of needed materials.

33. Experiment
John writes out his procedure for his experiment along with a materials list in his journal. He has both of these checked by his teacher where she checks for any safety concerns.

34. Collect and Analyze Results
John comes up with a table he can use to record his data.
John gets all his materials together and carries out his experiment.

35. Size of Baked Bread (LxWxH) cm3
Size of Bread Loaf (cm3)
Trials
Amt. of Sugar (g.) 1 2 3
Average
Size (cm3) 25
768
744
761
758 50
1296
1188
1260
100
1080
1116
250
672
576
588
612
500
432
504
360
Control group

36. Collect and Analyze Results
John examines his data and notices that his control worked the best in this experiment, but not significantly better than 100g. of sugar.

37. Conclusion
John rejects his hypothesis, but decides to re-test using sugar amounts between 50g. and 100g.

38. Once again, John gathers his materials and carries out his experiment.
Here are the results.

39. Observe your
world and come
up with a question
to answer using the
Scientific Method!

40. Get a piece of bulletin board paper and a pen.
Get into groups with students having the same shape sticker as you have. Disregard the numbers 1, 2, and 3 at this time. (Do not loose the sticker/wrapper)
Get a piece of bulletin board paper and a pen.
Get out the scientific method worksheet from Friday.
9/19/2018

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9/19/2018