does the temperature of water affect the time it takes a su

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Science Project Night Carson Elementary Start
with a testable question
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Testable Questions have
Testable Questions

• a responding variable
• a manipulated variable

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Variables

• Manipulated Variable
• The single condition that will be changed in an
  experiment

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Variables

• Responding Variable
• The condition that will be measured in an
  experiment

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Variables

• Controlled Variables
• The conditions that are kept the same
  (unchanged) in an experiment

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Testable Question

• Does changing the height of the ramp affect the
  speed of the car going down the ramp?

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Testable Question 1

• Does changing the height of the ramp affect the
  speed of the car going down the ramp?

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Testable Question 1

• Controlled Variables
• Same car
• Same ramp surface
• Surface the car roll onto
• etc

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Testable Question

• Does changing the amount of light affect the
  growth rate of plants?

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Testable Question 2

• Does changing the amount of light affect the
  growth rate of plants?

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Testable Question 2

• Controlled Variables
• Same type / size of plant
• Same wattage of bulb
• Same amount of water
• Same soil
• Same environmental conditions
• etc

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Testable Question

• Does the temperature of water affect the time it
  takes a sugar cube to dissolve?

Cold
Hot
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Testable Question 3

• Does the temperature of water affect the time it
  takes a sugar cube to dissolve?

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Testable Question 3

• Controlled Variables
• Same size of container
• Same amount of water
• Same amount of sugar
• Same dissolving method used
• etc

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Testable or Not Testable?

• Testable Questions need 2 parts
• A manipulated variable
• A responding variable

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Testable or Not Testable?

• Is this a testable question?
• How does a paper airplane fly?
• No, because there is not a manipulated variable
  and a responding variable in the question.

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Make the Question Testable

• To change the question so it is testable
• First list some variables that you could
  manipulate that are involved with flight of a
  paper airplane
• wing shape
• body shape
• type of paper used

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Make the Question Testable

• Second, decide what you are going to measure
  (responding variable). For example
• Distance the plane will fly
• Length of time the plane stays in the air

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Make the Question Testable

• Now, select one manipulated variable and one
  responding variable. Put them together to create
  the testable question. For example

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Make the Question Testable

• Does changing the shape of the
• wing affect the distance the
• paper airplane will fly?

• Does changing the shape of the
• body affect the length of time the
• paper airplane will stay in the
• air?

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Testable Question Formats

• Here are some possible sentence starters to
  create a testable question.
• Does changing ________ affect ________?
• How does changing _____ affect ______ ?
• If I change ______ will it affect _______ ?

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What if it Isnt Testable?

• Question Will a rocket go higher?
• Think about variables that could be manipulated
  (changed)
• Examples
• shape of the nosecone
• shape of the nozzle
• shape of the fins

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What if it Isnt Testable?

• Question Will a rocket go higher?
• What would be measured? (Can it be measured?)
• Example
• Height the rocket flies

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What if it Isnt Testable?

• Question Will a rocket go higher?
• Changing our non-testable question to a
  testable question
• Does changing the shape of the fins affect the
  height a rocket will fly?

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What if it Isnt Testable?

• Question Will hairspray move a potato?
• What variable could be manipulated? (What could
  be changed?)
• What would be measured? (Can it be measured?)

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What if it Isnt Testable?

• Question Will hairspray move a potato?
• What variable could be manipulated? (What could
  be changed?)
• Examples
• size of potato
• brand of hairspray
• size of hairspray container

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What if it Isnt Testable?

• Question Will hairspray move a potato?
• What would be measured? (Can it be measured?)
• Example
• Distance the potato moves

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What if it Isnt Testable?

• Question Why is the sky blue?
• What variable could be manipulated? (What could
  be changed?)
• What would be measured? (Can it be measured?)

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Let's See ...
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Is It Testable?

• Does changing the kind of surface affect how far
  my ball will roll?
• Testable
• Does the size of wheels affect how far my toy car
  moves?
• Testable

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Is It Testable?

• Does laundry detergent make dirty white clothes
  clean?
• Not testable
• How does the thickness of insulation affect the
  temperature in a dogs house?
• Testable

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Is It Testable?

• Do batteries make flashlights light up?
• Not testable
• Will the mass of a spaceship affect how fast it
  falls?
• Testable

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Good luck with your science fair projects. I
look forward to seeing you at the District
Science Fair. 15-19 April