Examlex
When 9.44g of calcium is heated in air,13.22g of calcium oxide is formed.What is the percent by mass of calcium in this compound?
Independent Variable
The variable that is manipulated or changed in an experiment to investigate its effect on the dependent variable.
Experimental Group
In a scientific study, the group of subjects who receive the treatment or condition being tested, as opposed to the control group.
Experimenter Bias
A process where the scientists performing the research influence the results, in order to portray a certain outcome.
Case Study
An in-depth investigation of an individual, group, event, or situation to explore causation in order to find underlying principles.
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