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### 20 Cards in this Set

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 meniscus curve seen at a liquid's surface, especially in a graduated cylinder spring scale an instrument for measuring weight metric system a decimal system of measurements based on the meter; SI second the basic unit of time; 9,192,631,770 vibrations of a cesium atom newtons (N) the metric unit of weight balance an instrument for measuring mass volume any space defined by length, width, and height volume=length x width x height v=lwh mass the quantity of matter in an object meter (m) the basic unit of length of the metric system; 39.37 inches liter (L) the volume of a cubic decimeter significant digits (figures) all of the certain digits plus one doubtful digit in a measurement density the mass in a unit of volume density=mass/volume d=m/v law of mass conservation in all chemical and physical changes, matter is neither created nor destroyed weight the measure of the force of gravity on an object water displacement method measuring the volume of an irregularly shaped object by submerging it in water contained in a graduated cylinder and taking before and after measurements unit analysis a mathmematical tool to convert between units units descriptive notes that accompany numbers SI or Systeme International (French for International System) the systematized units of the metric system; time (second), temperature (Kelvin), electrical current (ampere)which simplifies and standardizes all scientific work kilogram (kg) the mass of a liter of water; 1000 grams scientific notation using the power of 10 to express very large or very small numbers