Rusty Nail Experiment
This experiment lets you compare the impact of different liquids on the rate of rust in nails. Which liquid is best at preventing rust? Which is the worst?
*Note: These chemicals can be purchased locally at stores such as Walmart/Target.
4 Test tubes in stand
4 non-galvanized nails
The Science Behind the Reaction
Rust can only form in the presence of water and oxygen. Looking at the varying liquids used to produce rust, some have almost no water/oxygen (vegetable oil) or a ton of it (water/salt). Rust erodes the strength of a nail, making it less effective.
Heat one of the nails and note that the nail rusts much quicker; heat speeds up the reaction between the water and metal to more quickly form rust.