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Science
Term | Definition |
---|---|
accuracy | the extent to which a given measurement agrees with the standard value for that measurement. |
calibration | to determine, check, or rectify the graduation of |
graduated cylinder | a narrow, cylindrical container marked with horizontal lines to represent units of measurement and used to precisely measure the volume of liquids |
international system of measurement | decimal system of weights and measures |
liquid | composed of molecules that move freely among themselves but do not tend to separate like those of gases; neither gaseous nor solid. |
mass | a body of coherent matter, usually of indefinite shape and often of considerable size |
matter | the substance or substances of which any physical object consists or is composed |
meniscus | the convex or concave upper surface of a column of liquid, the curvature of which is caused by surface tension. |
newton | equal to the force that produces an acceleration of one meter per second per second on a mass of one kilogram |
precision | the quality, condition, or fact of being exact and accurate |
triple beam balance | A triple beam balance has a pan on which users place objects to weigh and three beams that each have a slide |
unit | the state of being united or joined as a whole |
volume | the amount of space that a substance or object occupies, or that is enclosed within a container, especially when great |
weight | a body's relative mass or the quantity of matter contained by it, giving rise to a downward force; the heaviness of a person or thing |
matter | anything that has mass and volume |
mixture | matter that consists of two or more substances not chemically combined |
compound | two or more elements chemically combined |
heterogenoeous mixture | two or more substances not chemically combined, and appearing non-uniform with physically distinct substances included |
pure subsrance | a substance made of only one kind of material having definite proportional amount and properties |
element | the simplest type of pure substance |
homogeneous mixture | two or more substances not chemically combined,but appearing to be evenly blened |