DO NOW

1
DO NOW

• You observe that every time you drink cola for
  lunch, you seem very antsy and distracted in your
  6th period class.
• Design a hypothesis to question this scientific
  phenomena.

2
A Possible Answer

• If soda affects attention levels in students,
  then drinking soda for lunch will increase a
  students distraction levels.

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Writing a Hypothesis

• Points to remember when writing a formal
  hypothesis.

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Point One

• Hypothesis must be written in an If, then
  statement
• Example, If the amount of television watched
  affects science grades, then the more television
  a student watches, the lower their grades.

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Point Two

• The IF part of the statement is what youve
  observed already.
• You should also mention the relationship between
  the variables.
• Example - If the amount of television affects
  science grades

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Words You Can Use Here

• Influence
• Affect
• Shape
• Change
• Mold
• Manipulate
• Relates to
• Impacts
• Correlates with

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Point Three

• The THEN part of the statement is what you are
  predicting is going to happen.
• You should write your educated guess here.
• Example - then, increasing the television a
  student watches will decrease their grades.

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Lets Practice

• Ill give you the variables, you write the
  hypothesis in an Ifthen, statement.
• ONE
• MV amount of fertilizer
• RV plant height

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A Possible Answer

• If the amount of fertilizer given to a plant
  affects its overall growth, then the more
  fertilizer given, the higher the plant will grow.

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• TWO
• MV amount of exercise
• RV health of pre-teens

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A Possible Answer

• If the amount a child exercises influences their
  health, then the less a child exercises, the more
  they will put their health in danger.

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• THREE
• MV temperature
• RV growth rates of bacteria

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A Possible Answer

• If temperature manipulates the growth of
  bacteria, then bacteria colonies will increase
  with a rise in temperature.

14
Interpret this graph and write a hypothesis
15
A Possible Answer

• Based on the data, If video games have no
  influence on violent acts in adolescents, then
  the number of violent acts in children will not
  be affected with the introduction of new video
  games.