critical thinking
Mental process of judging information before accepting it.
science
Systematic study of nature.
hypothesis
Testable explanation of a natural phenomenon.
law of nature
Generalization that describes a consistent natural phenomenon for which there is incomplete scientific explanation.
model
System similar to an object or event that cannot itself be rested directly.
prediction
A statement, based on a hypothesis, about a condition that should exist if the hypothesis is not wrong.
scientific theory
Hypothesis that has not been disproven after many years of rigorous testing, and is useful for making predictions about other phenomena.
control group
A group of objects or individuals that is identical to an experimental group except for one variable.
experiment
A test designed to support or falsify a prediction.
experimental group
A group of objects or individuals that display or are exposed to a variable under investigation.
variable
A characteristic or event that differs among individuals.
sampling error
Difference between results derived from testing an entire group of events or individuals, and results derived from testing a subset of the group.
statistically significant
Refers to a result that is statistically unlikely to have occurred by chance.
observation
first step of scientific approach
question
second step of scientific approach
hypothesis
third step of scientific approach
prediction
fourth step of scientific approach
test (observational)
fifth step of scientific approach
test (experimental)
sixth step of scientific approach
report results
final step of scientific approach