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Chapter 1 Phys. Sci.
Vocabulary Definitions
| Question | Answer |
|---|---|
| Science | The knowledge obtained by observing natural events and conditions in order to discover facts and formulate laws or principles that can be verified or tested. |
| Physical Science | The scientific study of nonliving matter. |
| Energy | The ability to do work. |
| Chemistry | The study of all forms of matter, including how matter interacts with other matter. |
| Meteorology | The study of the Earth's atmosphere, especially in relation to weather,and climate. |
| Meteorologist | Person who studies the atmosphere. |
| Geology | The study of the origin, history, and structure of Earth. |
| Geochemist | Person who specializes in the chemistry of rocks, minerals, and soil. |
| Biology | The study of life. |
| Scientific Method | A series of logical and orderly steps used to answer questions and solve problems. |
| Observation | The process of obtaining information by using the senses. |
| Hypothesis | A possible explanation or answer to a question or problem. An educated guess. |
| Data | Any pieces of information acquired through observation or experimentation. |
| Control Group | A standard with which to compare the results. |
| Constants | A variable in an experiment that stays the same. |
| Independent Variable | The variable that is changed in the experiment. |
| Dependent Variable | The factor (variable) being observed or measured. |
| Conclusion | A statement based on the results of the experiment. |
| Graph | A diagram that shows the relationship of one variable to another. |
| Law | A well-tested description of how something in nature works. |
| Theory | An explanation backed by results obtained from repeated tests or experiments. |
| Model | A representation of an object or system. |
| Mass | The amount of matter in an object. |
| Kilo means | 1000 times. |
| Milli means | 1/1000. |
| 1 Kilogram equals | 1000 Grams |
| Metric Ton equals | 1000 kg |
| SI unit for mass | kilogram (kg) |
| SI unit for length | meter (m) |
| Volume | The amount of space that something occupies. |
| SI for liquid volume | liters (L) |
| 1 cubic liter equals | 1000 L |
| 1 milliliter equals | 1 cubic centimeter or .001 liters |
| Volume of solid object | cubic meters, cubic milimeters, cubic centimeters |
| Density | Amount of matter in a given volume. D=m/v |
| Derived Quantity | Answer is found by combining 2 basic quantities. Ex: Density |
| Temperature | The measurement of how hot (cold) a substance is. |
| SI Unit for Temperature | Kelvin (K) |
Created by:
kstate1
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