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Understanding the world around us through the Scientific Method. Scientific Method Notes. Goals of science: To investigate , understand , and explain the natural world To predict future events using explanations. Scientific Method Notes. Scientific Method

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scientific method notes
Scientific Method Notes

Goals of science:

To investigate, understand, and explain the natural world

To predict future events using explanations

scientific method notes1
Scientific Method Notes

Scientific Method

Observation: use of the five senses to gather information (data)

quantitative: characteristic that involves numbers (counting or measuring)

b. qualitative: characteristic that is descriptive (does not involve numbers)

scientific method notes2
Scientific Method Notes

2. hypothesis:

possible explanation for a set of observations; possible answer to a scientific question

scientific method notes3
Scientific Method Notes

3. experiment: test of a hypothesis

control: experimental factor that stays the same in all tests

b. variable: experimental factor that changes between tests

Change only one variable at a time!

scientific method notes4
Scientific Method Notes

4. results: written record of observations and measurements (data) from an experiment

Example: notes, graphs, tables and charts

scientific method notes5
Scientific Method Notes

5. Conclusion: uses results to show that the hypothesis was supported (correct) or rejected (incorrect)

A good scientist would repeat his/her experiment several times and then publish the results so other scientists can repeat it as well!

1 observation
1. Observation:
  • Maggots appear on meat

that is left uncovered.

2 hypothesis
2. Hypothesis:
  • Flies produce maggots.
3 experiment
3. Experiment
  • Get several bowls of meat, cover half of them so flies cannot get in, and leave the other half opened to the flies.
a control
a. Control?

The opened bowl

Everything should be the same:

Location, temperature, type of bowl, type of meat, size of meat, time, etc.

a variable
a. Variable?

The cover (lid)

4 results
4. Results:
  • Only the uncovered bowls had maggots.
results can be shown on graphs
Results can be shown on graphs

Water Released and Absorbed by Tree


by Roots



by Leaves



Water released by leaves



8 AM




Relative Rates (g/h)



12 PM


2 PM


Water released by leaves



6 PM



8 AM

10 AM

12 PM

2 PM

4 PM

6 PM

8 PM

8 PM




10 AM




4 PM


Data Table


4 results1
4. Results:
  • Data Table is a good

way to show results.

5 conclusion
5. Conclusion:
  • Meat does not produce maggots. The uncovered bowls produced an average of 43 maggots while the covered bowls produced No maggots.
scientific method notes6
Scientific Method Notes

Theory: hypothesis that is supported by evidence from many experiments

Allows scientists to make predictions about future events

NOT a fact – it may be revised or replaced

experiments need procedures
Experiments need Procedures
  • Bad Example:
  • Put the brown and green Lego together
experiments need procedures1
Experiments need Procedures
  • Good Example:

Take 1: 4x2 brown lego and 1: 1x4 green lego

Put the last 2 bumps of the green 1x4 on the last row of bumps on the 4x2 so that the pieces are perpendicular