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Science Fair Tutorial. Why Science Fair?. The Ohio Academy of Science

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why science fair
Why Science Fair?
  • The Ohio Academy of Science
    • “The new science standards will have less emphasis on memorizing scientific facts and vocabulary and focus more on students developing their own ability to inquire and analyze. It’s more effective long term for students to go in depth on some subject they are interested in by going through a process of identifying an issue or problem, and trying to solve it by collecting data and defending it to teachers, peers and the community.”
why science fair1
Why Science Fair?
  • Standardized Tests
    • High School Entrance Exams
    • IOWA Testing
    • Ohio Graduation Test
    • ACT
    • SAT
scientific method
Scientific Method

The Scientific Method involves a series of steps that are used to investigate a natural occurrence.

scientific method1
Scientific Method



Formulate a Hypothesis


Collect and Analyze Results


Communicate the Results

steps of the scientific method
Steps of the Scientific Method
  • 1. Problem/Question: Develop a question or problem that can be solved through experimentation.
  • 2. Observation/Research: Make observations and research your topic of interest.
steps of the scientific method1
Steps of the Scientific Method

3. Formulate a Hypothesis: Predict a possible answer to the problem or question.

Example: If soil temperatures rise, then plant growth will increase.

steps of the scientific method2
Steps of the Scientific Method
  • Experiment: Develop and follow a procedure. Include a detailed materials list. The outcome must be measurable (quantifiable).

5. Collect and Analyze Results: Modify the procedure if needed. Confirm the results by retesting. Include data chart, tables, graphs, and photographs.

steps of the scientific method3
Steps of the Scientific Method

6. Conclusion: Include a statement that accepts or rejects the hypothesis.

Make recommendations for further study and possible improvements to the procedure.

steps of the scientific method4
Steps of the Scientific Method

7. Communicate the Results: Be prepared to present the project to an audience.

Expect questions from the audience.

the experiment
The Experiment

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.

  • The hypothesis is an educated guess about the relationship between the independent and dependent variables.
independent variable
Independent Variable
  • The independent, or manipulated variable, is a factor that’s intentionally varied by the experimenter.
dependent variable
Dependent Variable
  • The dependent, or responding variable, is the factor that may change as a result of changes made in the independent variable.
control group
Control Group

In a scientific experiment, the control is the group that serves as the standard of comparison.

The control group may be a “no treatment" or an “experimenter selected” group. The control group is exposed to the same conditions as the experimental group, except for the variable being tested.

All experiments must have a control group.


The constants in an experiment are all the factors that the experimenter attempts to keep the same.


Trials refer to replicate groups that are exposed to the same conditions in an experiment.

Data: Determine the following:

  • Mean
  • Median
  • Mode
  • Range
additional help
Additional Help
  • Ask for help
  • See Mrs. Ruda
  • See Mrs. Singleton
we want the students to
We want the students to
  • Observe their
  • world and come
  • up with a question
  • to answer using the
  • Scientific Method!