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Earth1JC
Vocab Words
| 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 these materials, and the history of the planet and its life-forms since its origin. |
| Oceanography | Study of Earth's 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 environment. |
| 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 of 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. |
| SI Unit | Replacement for the metric system; based on a decimal system using the number 10 as the base unit. |
| 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 many observations during repeated experiments. |
| Scientific Law | A principle that describes the behavior of a natural phenomenon. |