| A | B |
|---|
| hydrosphere | all the earth's water |
| hypothesis | possible explanation of a problem that is based on facts |
| measurement | comparison of a property of an object of phenomenon with a standard unit |
| meteorology | study of the earth's atmosphere |
| observation | act of using the senses to gather information |
| oceanography | study of the earth's oceans |
| pollution | contamination of the environment with waste products or impurities |
| scientific law | rule that correctly describes a natural phenomenon |
| scientific method | organized, logical approaches to scientific research |
| spectroscope | instrument that splits white light into a band of colors |
| spectrum | band of the various colors of light |
| theory | hypothesis or set of hypotheses supported by the results of experimentation and observation |
| variable | factor in an experiment that can be changed |
| wavelength | distance between wave crests |
