1. Identifying variables in an experiment

2. Question: How much water flows through a faucet at different openings?
Independent Variable: The thing you change/test (Can only be 1 thing for a FAIR test)
Dependent Variable: What you are trying to measuring
Controlled Variable: What I keep the same
Water faucet opening (closed, half open, fully open)
Amount of water flowing measured in liters per minute
The Faucet
Water pressure, or how much the water is "pushing"

3. Question: Does heating a cup of water allow it to dissolve more sugar?
Independent Variable: The thing you change/test (Can only be 1 thing for a FAIR test)
Dependent Variable: What you are trying to measuring
Controlled Variable: What I keep the same
Temperature of the water measured in degrees Centigrade
Amount of sugar that dissolves completely measured in grams
Stirring
Type of sugar