Observation & Inference

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Presentation transcript:

Observation & Inference

Qualitative or Quantitative Observations Factors that are observed or noticed during an experiment. Any information collected with the senses. The description of a scientific event. OBSERVATIONS ARE EITHER: Qualitative or Quantitative

Qualitative Observations Describe an object’s qualities. Use the five senses: Sight Hearing Touch Smell Taste Are based on facts. Describe what the object is like. MAP TAP 2002-2003

Quantitative Observations Describe quantities. Use numbers as measurements or to count. Scientists prefer quantitative observations. MAP TAP 2002-2003

Inference The process of drawing a conclusion from given evidence. Conclusions or deduction based on observations of available information.

Tracks like these are common in parts of New England and in the southwestern United States. What do you OBSERVE? What can you INFER?

Now what do you think?

Infer what happened based on your observations.

Source of graphic: http://bob.nap.edu/html/evolution98/evol6-e.html