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In this science project, which will or may be my control?

Getting water from the air insurvival important if you are ever stuck in the woods. Take Alarga black plastic garbage bag and cut one side open soyou can open to a large flat piece. It willprobably about three or four feet square. Holeone dig a foot deep and almost as wide as the spread of plasticbag. Place a cup or shallow bowl in the center of each hole.Stake corner of the bag to cover the hole. Put Rock apebble or small on top of the bag's Center thebag depress slightly, being sure not to leave deepenough SAG touching the container below. Use twothermometers, temperature measurement in the bag FRAMEWORK hole and the air temperature outside. Condensation forms on the underside of the bag and could run down intothe container if the outside air warms and airinside hole remains cold.

You have the answer to your question! A control is used to show that it is the change that you did that caused your result. You say "Condensation will form … IF heated outside air to and from air inside the hole remains cold." Then he is the test (changing temperature) and willingness (to maintain the temperature of the same). Just measure how / if you get condensation by varying time!

Feature video about “I Dig Science” program

Dst200F1211212:0 To 199.9F Type K Dig T/C Therm [WA200F] $354.00 These digital thermocouple thermometers provide digital accuracy and reliability for temperature measurements in rugged, industrial environments. Temperature readings are continuously displayed on a large 1″ LCD, easily readable from over 20 feet. Meter accuracies are from ± 0.3 degF (± 0.2 degC). FEATURES1″ digit LCD display Battery operated and loop powered models Easy to install, ½” NPT conn…

Dst300F1211212 0 To 300.0F Type K Dig T/C Therm [WA300F] $354.00 These digital thermocouple thermometers provide digital accuracy and reliability for temperature measurements in rugged, industrial environments. Temperature readings are continuously displayed on a large 1″ LCD, easily readable from over 20 feet. Meter accuracies are from ± 0.3 degF (± 0.2 degC). FEATURES1″ digit LCD display Battery operated and loop powered models Easy to install, ½” NPT conn…

Dst310F1211212:200 To 800F Type K Dig T/C Therm [WA310F] $354.00 These digital thermocouple thermometers provide digital accuracy and reliability for temperature measurements in rugged, industrial environments. Temperature readings are continuously displayed on a large 1″ LCD, easily readable from over 20 feet. Meter accuracies are from ± 0.3 degF (± 0.2 degC). FEATURES1″ digit LCD display Battery operated and loop powered models Easy to install, ½” NPT conn…