The Nature of Science
This is the one variable that you change in an experiment.
What is an independent variable?
The variable that you watch and measure throughout an experiment.
What is the dependent variable?
This is when a scientist repeats his own experiment.
What is repetition?
This is when one scientist performs the experiment of another scientist.
What is replication?
This is not a controlled experiment, but is used when scientists study organisms in their natural surroundings.
What is an observational study?