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scientific method
N/A
22
Science
7th Grade
10/25/2009

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Cards

Term
observation
Definition
information gathered through your 5 senses
Term
inference
Definition
an explanation or interpretation of an observation
Term
qualitative
Definition
refers to an observation that does NOT have a counting number
Term
quantitative
Definition
refers to an observation that includes the count or number of something
Term
logical inference
Definition
an explanation that makes sense based on the data or evidence gathered
Term
illogical inference
Definition
an inference that does NOT make sense based on the evidence or data gathered
Term
prediction
Definition
an inference about a future event based on current evidence or past experience
Term
variable
Definition

 

anything in an experiment that can change or be changed

Term
independent variable
Definition
the condition that is changed or being tested by the experiment
Term
dependent variable
Definition
the outcome that is measured or observed in the experiment
Term
control variable (constant)
Definition
the variables that should not be allowed to have an effect on the experiment
Term
experimental group
Definition
the group that receives the experimental treatment
Term
control group
Definition
group or individual in the experiment that is not tested, but is used for comparison as a reference for what “normal” would be like
Term
step 1: question
Definition
what will be answered by performing the experiment
Term
step 2: research
Definition
information collected concerning the question; can be prior knowledge
Term
hypothesis
Definition
statement of how the experimenter thinks the independent variable will affect the dependent variable
Term
"If,...then" form
Definition
format used to write a scientific hypothesis, it includes both the independent variable and the dependent variable
Term
experimental procedures
Definition
instructions written in numbered steps that explain exactly how the experiment is to be performed
Term
data
Definition
information gathered through observation
Term
graph
Definition
visual method of displaying data in order to make sense of it
Term
conclusion
Definition
statements of how the independent variable affected the dependent variable, this should be only based on the collected evidence from the experiment
Term
repeated trials
Definition
doing the experiment completely through several times (at least 3 times) to gather enough data to make a good conclusion
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