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CAES Unit 1 vocab

Scientific Investigations

bar graph a graph that uses horizontal or vertical bars to compare quantities.
circle graph a graph that uses sections of a circle to compare part of a whole. The value in a circle graph is always 100%.
data a collection of facts, observations or other information related to a question, observation, or an experimental investigation.
dependent variable the factor or variable that may change as a result of the independent variable or the variable manipulated by the experimenter.
distance the amount of space between two points, lines, or objects.
estimation an approximation or educated guess at a quantity based on the facts known at that moment in time.
hypothesis an idea that can be tested by an experiment or observation.
graphical representation a pictorial display of the data.
independent variable the variable of factor that is changed on purpose by the experimenter.
inference an explanation based on available data at that moment in time.
line graph a graph that shows the relationship between two quantities over time.
pattern a recurring event.
phenomena an observable event or occurrence.
predition a statement of what is to happen based on what is known from observation
quantity numbers, usually measurement with units.
repeated trials the number of times that the independent variable is tested in an experiment.
scale model a replica of an object.
sequence sorting in a planned pattern.
validity factual information based upon repeated trials.
experimental group "guinea pigs" -- the real test group in an experiment
observation something noted in an experiment or noticed about the world around you
control group part of an experiment treated "normally" -- used to compare experimental results
theory idea in science with at least some evidence or observations supporting it, useful in making predictions
direct observation an observation made on something you can see or measure "firsthand"
indirect observation observation about something you can't see or measure "firsthand" -- you must observe HOW OTHER THINGS ARE AFFECTED
law idea in science proven correct repeatedly without exception
scientific method steps often used in solving problems in science (can be helpful in solving any problem)
experiment used to test a hypothesis
procedure something DONE in an experiment
science search for the true nature of the world and how it works based on our observations of it
Created by: kdelk