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Lab Safety - Eric

QuestionAnswer
Safety goggles worn to protect eyes from hazzards such as wind, glare, water, or flying debris, also used when testing a gas
terrarium small closed container where living plants and sometimes small animals are kept and observed
hand lens used to observe things in a terrarium, it magnifies objects and is hand held
pan balance measures mass of an object, has 2 identical pans, one pan for object, one pan for weights
triple beam balance measures mass, has 3 beams, ones, tens, and hundreds, used to compare mass of 2 objects
thermometer used to measure the temperature of something
procedure step by step explanation telling how something was done
scientific method steps state the question, make observations, make hypothesis, do experiment, collect data, and communicate conclusion
observation looking for something or someone carefully in order to gain information
conclusion statement that tells what an investigation showed, based on obervations and data
opinion belief or judgment that does not have to be backed up by evidence
variable any factor that can change an experiment
inference an explanation that you figure out without actually observing something yourself
control in an experiment, this is the setup to which you will compare all the others
hypothesis an idea that can be tested by an experiment or an observation
scientific method ways that scientists perform investigations using logic and reasoning
clock measures time
spring scale measures weight
graduated cylinder measures volume
meter stick linear measurement of length, width,height and perimeter
Created by: Caschenbeck