Data – information gathered from experimentation
Hypothesis – an educated guess to answer scientific question; should be testable
Variable – anything that can vary in an experiment; the independent variable is tested in an experiment to see its effect on dependent variables
Control – an experimental trial added to an experiment to ensure that the experiment was run properly; see positive control and negative control
Positive control – a group of data that will give predictable positive results
Negative control – a group of data that will give predictable negative results
Concentration – the amount of a substance as a proportion of another substance; usually how much mass in some amount of volume
Journals – scientific periodicals or magazines in which scientists publish their experimental work, findings, or conclusions