Qualitative Observation - Observation that usese descriptive words. , Quantitative Observation - Observartions that use measurements or numbers , Observation - Fact gathered using one or more of your five senses. , Inference - A logical conclusion that you guess to be correct, based on observations, Prediction - Logical guess about what might happen next or in the future. , Fact - Statement that is true, Trial - A repeated experiment or test. , Fair Test - A scientific test where one thing is changed and everything else is controlled. , Variable - What changes in a scientific test, Metric System - A system of measurement used by most people in the world., Mass - How much matter (stuff) is in an object. , Volume - How much space an object takes up. , Length - Distance between two points. , Time - A measure of how long something takes. , Gram - Unit for mass. , Liter - Unit for volume. , Meter - Unit for length. , Graduated Cylinder - Tool used to measure precise amounts of liquids. , Beaker - Tool used to measure larger volumes of liquids. , Scale - Tool used to measure mass. ,

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