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Science TEST 1 vocab
1.1-1.4 + mini packets for test (vocab only)
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 | study of life and life processes |
scientific method | An organized plan used for gathering and communicating information |
observation | information obtained through the senses |
hypothesis | proposed answer to a question |
manipulated variable | the variable that causes the change in the other variable. |
responding variable | the variable that changes to to 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 small numbers easier to work with |
length | the distance between two points |
mass | 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 |
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 |
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 |
slope | The steepness of a line, equal to the ratio of a vertical change to the corresponding horizontal change |
direct proportionate | A relationship between two variables in which their ratio is constant |
inverse proportionate | A relationship in which the product of two variables is a constant when all other variables are held constant |