6.1 Scientific Method
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  • 1. SCIENCE PROCESS SKILLS PP. 4-8 ALSO P. 646-647 REVIEW THESE TERMS HYPOTHESIS OBSERVATIONS DATA INDEPENDENT VARIABLE (0R MANIPULATED) DEPENDENT VARIABLE (OR RESPONDING) CONSTANT INFERENCES
  • 2. HYPOTHESIS
    • AN EDUCATED GUESS OR THE PREDICTION THAT IS BASED ON YOUR OBSERVATION
    • CAUSE AND EFFECT RELATIONSHIPS
    • A SPECIAL PREDICTION THAT FORECASTS HOW THE INDEPENDENT VARIABLE WILL AFFECT THE DEPENDENT VARIABLE
    • IF, THEN, STATEMENT
  • 3. YOU TRY IT!
    • WRITE A HYPOTHESIS FOR THE FOLLOWING EXPERIMENT:
    • JOHN WANTS TO KNOW IF THE SIZE OF THE PAPER AIRPLANE’S WINGS WILL CHANGE THE DISTANCE THAT THE PLANE WILL FLY.
  • 4. First, identify the independent variable.
    • What is the independent variable:
    • The size of the paper airplane’s wings
    • Now identify the dependent variable:
    • The distance the plane will fly is the dependent
    • variable.
  • 5. What is your hypothesis?
    • Write your hypothesis.
    • If the size of the paper airplane’s wings increase, then the distance the plane flies will increase.
  • 6. WHAT DO I ALREADY KNOW?
    • HAVE STUDENTS COMPLETE THE WARM UP SCIENTIFIC INQUIRY
    • PART 1
      • PUT THE STEPS OF THE SCIENTIFIC METHOD IN PROPER ORDER.
    • PART 2
      • MATCH THE FOLLOWING TERMS IN THE CORRECT ORDER.
  • 7. MATCH Reread pp 4-8
    • HYPOTHESIS
    • CONTROL
    • VARIABLE
    • EXPERMENT
    • CONCLUSION
    • THEORY
    • DATA
  • 8. INFERENCES
    • An inference is an explanation for what we have observed. It explains what might be happening.
    • An inference must be logical.
    • Inferences can be changed as you get more information.
  • 9. What inference can you make?
    • You come into the classroom and you observe someone’s books are on your desk.
    • What inference can you make?
  • 10. Variables
    • The part that changes in an experiment is called a variable .
    • Independent variable is what the scientist or you change in an experiment.
    • Dependent variable is the difference the scientist or you measure after making the change.
    • A Constant variable is what the scientist make sure stays the same so the experiment is a fair test.
  • 11. You Try It!
    • Jan counted the leaves on each of three plants. Then she put one plant under a blue light bulb, another plant under a yellow light bulb, and a third plant under a white light bulb. She kept all three lights on from 6:00 a.m. to 9:00 p.m. After 2 months, she counted how many leaves each plant had.
    • Name the independent variable, the dependent variable and the constant
  • 12. Check your answers!
    • Independent Variable: the color of the light
    • Dependent Variable: the number of leaves on the plant.
    • Constants: could be the kind of plants, the soil in the plant, the amount of water, the pot size, temperature, the wattage of the light bulb, or
    • the distance the light is from the plant.
  • 13. HERE IS AN EXPERIMENT TO TRY FOLLOW THE PROCEDURE MATERIALS:
    • TRY THIS WITH YOUR CLASSMATE OR PARTNER
    • OBTAIN TWO COINS, A PENNY AND A QUARTER.
    • A CONTAINER OF WATER ( A BEAKER)
    • TWO EYE DROPPERS
  • 14. Write a Hypothesis about your science experiment with the penny and quarter.
    • Hypothesis:
    • What is the independent variable?
    • What is the dependent variable?
  • 15.  
  • 16. Warm-up
    • Read the article on Methane Found in Mars
    • Atmosphere
    • Make a hypothesis about this article. Write your hypothesis at the bottom of your article.
  • 17. WRITE YOUR HYPOTHESIS FOR YOUR EXPERIMENT
    • IDENTIFY YOUR INDEPENDENT VARIABLE AND YOUR DEPENDENT VARIABLE
    • WHAT ARE TWO CONSTANT VARIABLES?