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Chapter 1.1 Vocab
| Term | Definition |
|---|---|
| Astronomy | Study of objects beyond Earth's atmosphere |
| Meteorology | The study of the atmosphere, which is the air surrounding Earth |
| Geology | Study of materials that make up Earth and the processes that form and change their materials, and the history of the planet and its life-forms |
| Oceanography | Study of Earths oceans including the creatures that inhabit its waters, its physical and chemical properties, and the effects of human activities |
| Environmental Science | Study of the interactions of humans with enviroment |
| Geosphere | The part of Earth from its surface to its center |
| Atmosphere | Blanket of gases surrounding Earth that contains about 78 percent nitrogen, 21 percent oxygen, and 1 percent other gases such as argon, carbon dioxide, and water vapor |
| Hydrosphere | All the water in Earth's oceans, lakes, seas, rivers, and glaciers plus all the water in the atmosphere |
| Biosphere | All of Earth's organisms and the environments in which they live |
| Scientific Methods | A series of problem-solving procedures that help scientists conduct experiments. |
| Hypothesis | A testable explanation of a situation |
| Independent Variable | Factor that is manipulated by the experimenter in an experiment |
| Dependent Variable | Factor in an experiment that can change if the independent variable is changed |
| Control | Standard for comparison in an experiment |
| Le Systeme International d'Unites | Replacement for the metric system; based on a decimal system using the number 10 as the base unit; includes the meter, second, and kilogram |
| Scientific Notation | A method used by scientists to express a number as a value between 1 and 10 multiplied by a power of 10 |
| Scientific Model | An idea, a system, or a mathematical expression that represents the idea being explained. |
| Scientific Theory | An explanation based on may observations during repeated experiments |
| Scientific Law | A principle that describes the behavior of a natural phenomenon. |