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Scientific Method


Scientific Method Paper Airplanes SPI 0507.Inq.1 :0507.Inq.1 Identify specific investigations that could be used to answer a particular question and identify ... – PowerPoint PPT presentation

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Title: Scientific Method

Scientific Method
  • Paper Airplanes
  • SPI 0507.Inq.1
  • v 0507.Inq.1 Identify specific investigations
    that could be used to answer a particular
    question and identify reasons for the this choice
  • v 0507.Inq.2 identify tools needed to
    investigate specific questions
  • v 0507. Inq.3 maintain a science notebook that
    includes observations, data, diagrams, and
  • v 0507.Inq.4 Analyze and communicate findings
    from multiple investigations of similar phenomena
    to reach a conclusion

What is the Scientific method?
  • A series of steps, used by scientists, to gather

Our experiment
  • Lets say we wondered if the material that an
    airplane is made of affected the distance it
  • What could we do?
  • What materials would we need?
  • How do we set up the experiment?
  • Is my experiment about something that is
    relevant? Do inquiring minds want to know?

Steps of the Scientific Method
  • Step 1 Question/problem/purpose
  • Do you ever wonder why something is a certain
    color, shape, or texture? Why some things melt
    faster than others? Why some cars go faster than
    others? How something works? Why something works
    the way it does?
  • Well, if you have ever ask a questions about
    something in our world, you are doing what
    scientists do.
  • A scientist will have a question about some
    aspect of the natural world.
  • Example Will the material of the airplane affect
    the distance the airplane will travel?
  • Note the tense of the verb.

What is a hypothesis?
  • Step 2 is to create a hypothesis.
  • A hypothesis is an educated guess about what
    you think the end results of your experiment will
  • Usually has an Ifthenstatement.
  • It is in the form of a statement. What type of
    punctuation is at the end of a statement?
  • It is based on previous knowledge you have gained
    from school, T.V., books, home, etc.
  • Must be testable.
  • For example
  • If my airplane is made out of a lighter material
    such as notebook paper, then will it fly a longer

  • Step 3
  • 1. A test of a hypothesis.
  • 2. One variable is tested at a time.
  • Two types of variables
  • Independent- what you change
  • Dependent- (what you see) what happens as a
    result of the independent variable
  • What are the variables in our airplane
  • Independent variable- (What are we changing?)
    The material used to make the airplanes
    (notebook paper, construction paper, and printer
  • Dependent variable- the distance traveled

  • Step Four Collect and Analyze Data
  • 1. Two types of data
  • a. Qualitative descriptive data, given in
  • -Example lighter paper- flew further, heavy
    paper- shorter distance.
  • b. Quantitative numerical data, given in
  • -Example 4 feet, 2 feet in distance
  • 2. Can be better organized for analysis by
    organizing data into charts or graphs.

  • Step Five Conclusion
  • 1. A statement that proves or disproves the
  • 2. Achieved by studying data and comparing it
    to the hypothesis. Does data prove/support or
    disprove/contradict the hypothesis.
  • 3. Example The lighter material did fly the
    farthest distance. Note the tense of the verb.

Your Science Fair experiment
  • 1. Purpose- What is your experiment about?
  • 2. Hypothesis- a STATEMENT that must be proved or
  • National Treasure movie
  • -Thomas Edison tried 2,000 times to make a light
    bulb. 1,900 of those times his hypothesis was
    disproved. It is perfectly OKAY for your
    hypothesis to be disproved!! You learned
  • 3. Procedure- step by step instructions of what
    you did (someone else should be able to re-do
    your exact experiment by reading your
  • 4. Materials List- list all the materials used in
    your experiment (IF your materials are small
    enough to fit in front of your project board, you
    can put them with your project board at the
    science fair- BUT you still have to have a
    materials list.
  • 5. Results- your data collected from your
    experiment (graphs, charts (can be as simple as a
    yes/no chart), pictures, drawings, etc.)
  • 6. Conclusion- a STATEMENT that proves or
    disproves the hypothesis. Remember, it is okay
    for your hypothesis to be proved wrong!