Unit 1 Cycle 1: Vocabulary word definition draw a picture here

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