Observations

Qualities of a Good Scientific Observation

  • OBJECTIVE (No Opinions or Inferences)
    • Observation: There is a person floating in the water with the arms stretched out.
    • Inference: Stretching out the arms increases the person’s surface area helping them float more.
      • (An inference is what you think explains what you observe. However, it does not have to be true. It is not a fact.)

 

 

  • QUANTITATIVE: an observation that uses exact measurements or amounts.
    • It takes 10 seconds for the car to reach the finish line.
    • Book weighs 50 grams.
  • NOTICES PATTERNS
    • The bell rings every 2 seconds.
    • The dog barks every time it sees a car.
  • When measurements are not possible,
    • MAKES COMPARISONS with well-known objects.
      • Object is as tall as a four-story building
      • Object is the size of a penny.
  • DETAILED and descriptive, but only includes relevant information.
  • “INTERESTING”
    • Interesting is an opinion, but we use “interesting” to represent something that helps you understand what you are observing at a deeper level. You might notice something unexpected or less obvious.