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1. An investigator wants to find out if longer hours of watching television can cause eye defects.
Independent Variable:
Dependent Variable:
Constant Variables:


2. A researcher wants to know if the insulation of a room affects the temperature of the room.
Independent Variable:
Dependent Variable:
Constant Variables:


3. You want to test what paper is best to use for a paper airplane to make it fly longer.
Independent Variable:
Dependent Variable:
Constant Variables:​