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:​