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Chapter 1
Science Skills
| Question | Answer |
|---|---|
| Science | A system of knowledge about the natural world and the methods used to find that knowledge |
| Technology | The use of scientific knowledge to solve practical problems |
| Chemistry | The study of the composition, structure, properties and reactions of matter |
| Physics | The study of matter and energy and the interactions between the two forces and motion |
| Geology | The study of the origin, history and structure of Earth |
| Astronomy | The study of the universe beyond Earth |
| Biology | The study of life and life processes |
| Scientific Method | An organized plan used for gathering and communicating information |
| Observation | Information obtained through the senses |
| Hypothesis | A proposed answer to a question |
| Manipulated Variable | The variable that causes a change in another variable |
| Responding Variable | A variable that changes in response to a change in the manipulated variable |
| Controlled Experiment | An experiment in which only one variable, the manipulated variable, is deliberately changed at a time |
| Scientific Theory | A well-tested explanation for a set of observations or experimental results |
| Scientific Law | A statement that summarizes a pattern found in nature |
| Model | A representation of an object or event |
| Scientific Notation | Makes very large or very small numbers easier to work with . It uses power of 10 and the exponent |
| Length | The straight line distance between two points |
| Mass | The amount of matter in an object |
| Volume | The amount of space taken up by an object |
| Density | The ratio of a material’s mass to its volume (17) |
| Conversion Factor | A ratio of equivalent measurements that is used to convert a quantity from one unit to another |
| Precision | A gauge of how exact a measurement is (19 |
| Significant Figures | All the digits in a measurement that are directly measured, plus the last digit, which is estimated |
| Accuracy | The closeness of a measurement to the true value of what is measured |
| Thermometer | An instrument that measures temperature |
| Slope | The steepness of a line, equal to the ratio of a vertical change to the corresponding horizontal change |
| Direct Proportion | A relationship between two variables in which their ratio is constant |
| Inverse Proportion | A relationship in which the product of two variables is a constant when all other variables are held constant |
Created by:
RonWat
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