SOL PS 1
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| state the question or problem | first step of Scientific Method; the purpose of the experiment
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| research | using computers, books, and interviews to find out information about the topic before making a hypothesis
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| hypothesis | an educated guess about the outcome of an experiment; must be testable
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| Experiment | testing the hypothesis
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| Independent Variable | what is changed on purpose at the beginning of the experiment; manipulated variable
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| Dependent Variable | what is measured in the end; responding variable
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| constants | things that remain the same throughout the experiment; not changing
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| control | the normal or plain way of doing something that is used as a comparison group
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| procedures | directions for completing an experiment
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| data | information collected during an experiment
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| record and analyze data | step that involves creating a graph
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| conclusion | the last step; a statement as to whether or not the hypothesis is supported by the data or not
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| repeated trials | the number of times the experiment is performed; each trial should be done the exact same way
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| qualitative observations | not measurable such as color, texture, smell, taste
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| quantitative observations | can be measured to provide a number such as length, weight, temperature, time
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| length | distance between two points, includes height
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| mass | amount of matter in the object
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| weight | pull of gravity on the mass of an object
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| volume | amount of space an object occupies
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| density | amount of matter in a certain space (mass/volume)
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| balance | tool used to measure mass in grams
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| graduated cylinder | tool used to measure liquid volume in mL
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| water displacement | using a change in water level to determine the volume of an object
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| meter | basic unit of length in the metric system (SI)
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| liter | basic unit of volume in the metric system (SI)
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| gram | basic unit of mass in the metric system (SI)
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| Theory | a well- thought explanation of observations in nature
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| Law | describes what will happen in a situation often demonstrated by a mathematical equation
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