Observation and Inference
Information that comes to you from your senses or by measuring with an instrument.
Observation
In a controlled experiment, what is the control group?
The group that you do not do anything different to, so that you can compare to it.
What part of the chart is highlighted in yellow in the picture?
subtitle
A guess or prediction that you make based on your observations.
Inference.
Something that you change or that changes during an experiment.
What part of the chart is highlighted in green?
the units
A quantitative observation must involve a...
measurement
In our parachute lab, what was the variable?
Number of pennies
When you use a triple beam balance to get the mass of an object, which type of observation are you making?
Quantitative
What was the data that we recorded in the parachute activity?
Number or seconds that it took the parachute to fall.
Give one observation and one inference about the picture shown.
Observation be based on senses and be a fact. Inference is a guess based on observations.
The purpose of a controlled experiment is always to see how the __________ affects the __________.
variable , data