| A | B |
|---|
| astronomy | the study of objects beyond Earth's atmosphere |
| meteorology | the area of Earth science that studies the air that surrounds Earth |
| geology | the study of the materials that make up Earth and the processes that form and change these materials |
| oceanography | the study of Earth's oceans |
| environmental science | the study of the interactions of organisms and their surroundings |
| geosphere | the area from the surface of Earth down to its center |
| hydrosphere | the water in Earth's oceans, seas, lakes, rivers, and in the atmosphere |
| atmosphere | the gases that surround Earth |
| biosphere | all organisms on Earth and the environments in which they live |
| hypothesis | a suggested explanation for observations, or a question that an experiment starts with |
| independent variable | the factor manipulated by the experimenter |
| dependent variable | the factor that changes in response to changes in the independent variable |
| control | used to show the results are actually caused by what is being tested |
| Le Systeme Internationale d'Unites (SI) | the International System of Units, including meters, kilograms, and degrees Celcius, used for all measurements taken in science |
| scientific notation | a way of writing very large or very small numbers |
| bias | to influence in a particular, typically unfair, direction; prejudice |
| scientific model | an idea, a system, or a mathematical expression that represents the concept being explained |
| scientific theory | an explanation based on many observations; can be changed or modified with the discovery of new data |
| scientific law | a principle that describes the behavior of a natural phenomenon |
