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Intro Unit

qualitative observation description; observations with words
quantitative observation measuring observations using numbers
observation using your senses to gather information
inference when you are able to use observations to explain something
beaker a flat-bottomed tool used to measure larger volumes of liquids
erlenmeyer flask a tool that measures volume but also has tapered neck to swirl/mix substances
graduated cylinder a tall cylindrical tool to measure small volumes of liquid in precise increments
test tubes a small glass to hold (not measure) small volumes of liquids
thermometer a tool to measure the temperature in Fahrenheit or Celcius
dropper a tool to drop small amounts of liquids
safety glasses protective eyewear that protects your eyes from harmful materials
microscope a tool to view smaller objects more clearly
digital scale a tool that will measure the mass of an object
scoopula a tool to transfer small powders or solids to test tubes or other holding areas
hypothesis An educated guess (prediction) based on observations and/or prior knowledge
procedures A simplistic but detailed step by step list of what to accomplish
independent variable It is a variable that stands alone and isn't changed by the other variables you are trying to measure.
dependent variable It is the measurement that changes as a result of the IV.
control variable What stays the same in an experiment
controlled experiment An experiment where the person conducting the test only changes one variable at a time in order to isolate the results.