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### 21 Cards in this Set

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 a mathematical tool for converting units unit analysis the measure of the force of gravity on an object weight any space defined by length, width, and height volume measuring the volume of an irregularly shaped object by submerging it in water contained in a graduated cylinder and taking before-and-after measurements water displacement method the law which states that matter is neither created nor destroyed law of mass conservation an instrument for measuring mass balance the mass in a unit of volume density the mass of a liter of water kilogram (kg), or 1000 grams the quantity of matter in an object mass curve seen at a liquid's surface, especially in a graduated cylinder meniscus volume of a cubic decimeter liter (L) using the power of 10 to express very large or very small numbers scientific notation the basic unit of length of the metric system meter (m); 39.37 inches the metric unit of weight newton (N) a decimal system of measurements based on the meter metric system, or SI 9,192,631,770 vibrations of a cesium atom a second the basic unit of time second anything that has mass and volume matter the expanded metric system System International (SI) an instrument for measuring weight spring scale all of the certain digits plus one doubtful digit in a measurement significant digits