Variables in Science

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Variables in Science

• Manipulative Variable
• Responding Variable
• Control Variable
• Then what is a Hypothesis's?

Swinging Washer Lab
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Manipulative Variable

• Manipulated Variable what you are going to
  change in the experiment..
• Example
• Number of washers used

3
Responding Variable

• Responding variable what you are going to
  measure in the experiment. What part changes
  when you change the manipulative variable
• Example Number of swings

4
Control Variable

• Controlled variables factors that do not change
  during your experiment. ALWAYS KEPT THE SAME
• Example String length

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Hypothesis

• Hypothesis a testable statement that forecasts
  how a manipulated variable will affect a
  responding variable.
• ifthen..because statement.
• Example
• If I add more washers to the string then they
  will swing more because of momentum

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• Mr. Smithers Special Juice

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Mr. Smithers

• Mr. Smithers thinks that a special juice will
  increase the productivity of workers. He creates
  two groups of 50 workers each and assigns each
  group the same task (in this case, theyre
  supposed to staple a set of papers.) Group A
  is given the special juice to drink before they
  start to work. Group B is not given the
  special juice. After an hour Mr. Smithers counts
  how many stacks of papers each group has made.
• Group A made 1,587 stacks
• Group B made 2,113 stacks.
• 1-What is the controlled variable?
• 2- What is the manipulated variable?
• 3- What is the responding variable?
• 4- What should Mr. Smithers conclusion be?
• 5-Draw a chart, graph or table to show the results

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Mr. Smithers Controlled Variable

• He creates two groups of 50
• same task

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Mr. Smithers Manipulative Variable

• Group A is given the special juice to drink
  before they start to work

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Mr. Smithers Responding Variable

• Group A made 1,587 stacks
• Group B made 2,113 stacks.