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Variable Basics Ppt

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Science Fair Prep

Science Fair Prep

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Transcript

  • 1. What is a Variable?
  • 2. Types of Variables
    • Manipulated Variable
    • The condition that will be changed in an experiment.
  • 3.
    • Responding Variable
    • The condition that will be measured in an experiment.
    Types of Variables
  • 4.
    • Controlled Variables
    • The conditions that are kept the same (unchanged) in an experiment.
    Types of Variables
  • 5.
    • Identify variables for the following experiments.
    • You can do it!
    Practice
  • 6.
    • Does changing the temperature of a ball affect the height the ball will bounce?
    Testable Question #1 Hot Cold
  • 7. Identify Variables #1
    • Does changing the temperature of a ball affect the height the ball will bounce?
    Cold Hot Manipulated Variable Responding Variable
  • 8.
    • Controlled Variables:
    • * Same ball
    • * Dropped from the same height
    • * Dropped onto the same surface
    • * etc…
    Identify Variables #1
  • 9.
    • Does changing the color of light affect the growth rate of plants?
    Testable Question #2
  • 10. Identify Variables #2
    • Does changing the color of light affect the growth rate of plants?
    Manipulated Variable Responding Variable
  • 11.
    • Controlled Variables:
    • * Same type / size of plant
    • * Same wattage of bulb
    • * Same amount of water
    • * Same soil
    • * Light on for the same amount of
    • time
    • * etc…
    Identify Variables #2
  • 12.
    • How does the size of a parachute affect the time it takes a toy
    • hippo to fall 10 feet?
    Testable Question #3
  • 13. Identify Variables #3
    • How does the size of a parachute affect the time it takes a toy hippo to fall 10 feet?
    Manipulated Variable Responding Variable
  • 14.
    • Controlled Variables:
    • * Same hippo
    • * Dropped from the same height
    • * Same parachute fabric
    • * Same length of strings on the parachute
    • * etc…
    Identify Variables #3