Question | Answer |
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. |