AbstractAlAM

Abstract

Cars, nails, and machinery, all rust. They could rust in water, saltwater, air, or even orange juice. Which will cause nails to rust the fastest? By how many days? This project examines the speed of nail rusting in air, water, saltwater, and orange juice (dependent variable). The nails are in a three clear plastic cups inside the same house. One cup for each substance. Then record the cups daily or weekly (independent variable) using pictures. The first nail to rust is the fastest. The results supports the hypothesis. The results are the nail in orange juice rust the fastest, then saltwater, and water in third, and lastly air. The orange juice nail by far has the most rust. Besides air, the experiment shows that water rusts the slowest comparing to saltwater and orange juice.