Qualitative vs. Quantitative
Observations
Quantitative Observations
  Data
obtained through measurement.
  A value obtained from a tool
  A number
Examples
Mass
Width
Length
Circumference
Qualitative Observations
 Data
obtained by using your senses.
Examples
Color
Texture
Smell
Qualitative or Quantitative?
  1
cup of water
  pH of fish tank = 6.8
  Red apple
  A very tall man
  Some orange juice
  130 pound female
  Slippery fish
  3 gallons of gasoline
Recording Data
  Data
means any # that you read from a
tool or any observation you make using
your senses. This includes temperature,
mass, volume, texture, color, etc.
  Remember to record the units of
measurement (grams, mL, cm, etc…)
Presenting Data
  Data
should always be presented in
columns in a data table. (use a ruler to
construct)
  The data table MUST have a descriptive
title or heading!!! (minimum of 6 words!)
  Every piece of data should have units.
  Spread it out! Make your data table as
wide as the page.
Sample Data Table