The Scientific Method ?A Way to Solve a Problem?

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The Scientific Method?A Way to Solve a Problem?
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What is the Scientific Method?

• It is the steps a scientist takes to answer a
  question.
• In other words, its a way to solve a problem.

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Scientist have to take the time to think
logically when they are investigating a question
or problem.

• They break things down into many steps that make
  sense.

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• First, scientists develop a testable question and
  gather information.
• Is blue prettier than green is not testable.
• Second they form an hypothesis or prediction.

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Hypothesis vs Prediction

• A hypothesis is a testable statement.
• Ex Driving over 55mph uses more gas per mile
  than driving under 55.

• A prediction is an If-then statement showing
  cause and effect.
• Ex If one drives more than 55mph, he will burn
  more gas per mile.

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The third step is to create and conduct an
experiment to test their hypothesis.
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A key to experiments is observing what happens
and writing it down.

• Experiments consist of a control group and an
  experimental group

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Groups

• The control group is there as a comparison.
  Nothing is done to this group. Ex a car driving
  55mph.

• The experimental group (same type of car driving
  over 55mph) is where the actual test is being
  conducted. It contains the dependent and
  independent variables.

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Variables

• Independent variable is what is being manipulated
  or changed in the experiment. (speed of the car)
• Dependent variable is what you are looking to see
  happen. It is dependent on the other variable.
  (amount of gas used per mile)

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Once a scientist completes an experiment, they
often repeat it to see if they get the same
findings and results.

• This is really what we call verification, or
  checking things out to make sure everything was
  valid and will happen again and again.

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Fourth Step

• Scientists compile their experimental data and
  write reports and make charts and graphs to
  explain their data.

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Fifth Step

• Draw a conclusion
• Was the hypothesis proven or disproven?

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Sixth, scientists share their experiments and
findings with others.

• Because they share their experiments and
  findings, scientists can learn from each other
  and often use someone elses experiences to help
  them with what they are studying or doing.

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The steps of the Scientific Method are

• Question and Research
• Hypothesis and Prediction
• Experiment and Repeat
• Data
• Conclusions
• Share data