unit 1 cycle 1: vocabulary word definition draw a picture here
TRANSCRIPT
Unit 1 Cycle 1:Vocabulary
word definition
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variable •something in an experiment that changes or can be changed
What is the variable?
What is the variable?
hypothesis • plural - hypotheses
• a statement that can be proved or disproved by experimental or observational evidence
If, then statement:• If the size of the magnet increases, then the distance the paper clip moves will increase.
If, then statement:
• If you stay up all night, then ….
If, then statement:
• If you eat all the Halloween candy, then ….
relationship •an idea about what happens to one variable when a second variable changes
relationship
manipulated variable • also called independent
variable • in an experiment, a variable
that can be deliberately changed by the scientist and that determines the values of other variables (called responding variables)
manipulated variable
• the variable you change on purpose
•the ONE and ONLY variable you change
What is the manipulated variable?
What is the manipulated variable?
responding variable • also called dependent
variable • in an experiment, a variable
that rresponds to the change in the values of the manipulated variables
responding variable
•what you record in your data table
responding variable
responding variable
What is the MV & RV?What is the MV & RV?
MV RV
What is the RV & MV?
RV
MV
fair test • an experiment in which only
the manipulated and responding variables are allowed to change and all other variables and conditions are kept the same
fair test• a controlled experiment
•1 MV, 1 RV, everything else is kept the same/constant
Is this a fair test?
Is this a fair test?• Experiment: If the different Earth’s
materials are heated by sunlight, then is the final temperature the same or different?
evidence
• in an experiment, the data collected by the researcher
evidence
DRY MIXdependent variable
responding variable
Y - axis
manipulated variable
independent variable
X - axis
DRY MIXhttp://interactionsinfo.net/edition1/students_edition1/index.html
http://interactionsinfo.net/edition1/students_edition1/index.html
DRYMIX
best value
•mean
calculate the best value
uncertainty
•range
calculate the uncertainty