90 baby food jars; 90 iron bar ties; 1 digital camera; 1 electronic balance; 1 fork; 1 roll masking tape; 1 measuring cup, mL; 4 plastic milk jugs, gallon; 1 plastic pouring cup; 1 plastic squirt bottle; 1 Sharpy marker; 4 gallons seawater 4 gallons tap water Label 30 baby food jars "T 1" through "T 30" and fill with 50 mL of tap water. Label 30 baby food jars "S 1" through "S 30" and fill with 50 mL of seawater. Label 30 baby food jars "1" through "30" and leave empty. Using the electronic balance, find the mass of each bar tie and record. Place one bar tie in each jar. Record observations. Photograph wires at the start of the experiment and whenever you notice an interesting change. At the end of the experiment, drain solutions allow to dry, and find the mass of each bar tie.
The "Seawater" bar ties average mass increased by 0.025 grams. The "Tap Water" bar ties average mass increased by 0.009 grams. The average mass of the "No Water" bar ties increased by 0.004 grams.
Since the "Seawater" bar ties had the greater average mass increase, they must have rusted more than the tap water. These results are supported by visual observations, as well. This data proves the hypothesis correct that iron rusts faster when exposed to seawater than when exposed to tap water.
The project determine whether or not iron exposed to ocean water will corrode more than when exposed to
Science Fair Project done By Kamran M. Jamil