Inference and Observation Scienetific Method And Lab Safety

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Inference and Observation Scienetific Method And Lab Safety

  1. 1. Agenda (Plan): Vocabulary quiz: 10 minutes Lesson: “Inference vs Observation” 45 minutes
  2. 2. Scientific Method – How do scientists answer questions? Observation Inference Hypothesis
  3. 3. Observation: This cat is big, the other one is not. Inference: One cat eats more food Hypothesis : If the big cat eats less, it will not be as big
  4. 4. Work in groups <ul><li>“ What is happening in the picture?” </li></ul><ul><ul><li>Write one sentence </li></ul></ul>
  5. 5. Window Ball Egg Foot
  6. 6. What is happening in the picture? <ul><li>1. </li></ul>Inference (I think) Observation (I see)
  7. 7. What is happening in the picture? <ul><li>2. </li></ul>Inference (I think) Observation (I see)
  8. 8. What is happening in the picture? <ul><li>3. </li></ul>Inference (I think) Observation (I see)
  9. 9. Soda Cans Inference (I think) Observation (I see)
  10. 10. Why are observation and inference important? <ul><li>Observation  inference  hypothesis </li></ul>O 2 Dead Fish  No oxygen in the water  If oxygen level increases, fish population will increase O 2
  11. 11. Homework <ul><li>Observation or Inference? </li></ul>The walls are broken – Observation / Inference
  12. 12. Lab Safety Rules Wear lab safety goggles
  13. 13. Lab Safety Rules Do not wear open shoes
  14. 14. Lab Safety Rules Use gloves when handling chemicals
  15. 15. Lab Safety Rules Collect broken glass in a special container
  16. 16. Lab Safety Rules No eating or drinking
  17. 17. Do not smell the chemicals directly
  18. 18. Be respectful to the other students. Accidents can occur if you are not careful
  19. 19. Science Notebook <ul><li>Table of contents </li></ul><ul><li>2 pages </li></ul>Table of Contents
  20. 20. Science Notebook Date: September 14, 2009 Title of Experiment: Question:…………………… Hypothesis:………………… Observations: Analysis:…………………….. Conclusion ……………………

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