Transcript Preventing Rust on Iron Nails

Preventing Rust on Iron Nails
By: Miss LeRoy and Mr. Gervais
Purpose
To examine the effect of different materials at
preventing rust formation on iron nails.
Experimental Design
Quantitative Observations
Table 1: The effect of petroleum jelly and vinegar on preventing rust on iron nails
Percent of Rust on Percent of Rust on
Iron Nail with
Iron Nail with
Petroleum Jelly (%) Vinegar (%)
Percent of Rust on
Iron Nail (Control)
(%)
Day 1
2
15
10
Day 2
5
40
12
Day 3
5
60
15
Final
7
85
25
Discussion- Explanation of Results
• Control nail rusted because it was exposed
to air and water which cause corrosion
• Petroleum Jelly was the most effective rust
inhibitor because it coats the nail
• Vinegar increased the rate of rust formation
because it contains a lot of water
Discussion- Implications
• Materials which are oil based would be
effective at preventing corrosion of nails
• Petroleum Jelly would be too messy to use,
but other types of oils may be effective
• Oil based products could be used to coat
nails, bridge components, or vehicles to
prevent rust formation
References
Berg, L., Martin, D., Solomon, E. (2002). Biology. Thompson
Learning, USA