Corrosion
Aim: To investigate the factors that cause rusting and how to prevent it.
Equipment: Eight test tubes, test tube rack, a bung, eight iron nails, boiled water, salt water, tap water, calcium chloride, cooking oil, vaseline, paint, zinc.
Method:
1. Label all the test tubes A - H and place them in a test tube rack.
A = Nail
B = Nail + Water
C = Nail + Salt Water
D = Nail + Boiled water + oil
E = Nail + CaCL + Bung
F = Nail + Vaseline + water
G = Nail + paint + water
H = Nail + Zn + water
3. Leave the test tubes undisturbed for at least three days.
Hypothesis
I think that D - H will be mostly protected from corrosion and A-C will be the most affected.
Outcome
A- The nail corroded a bit but not as much compared to the others.
B- The water is filled with rust particles and the nail has got rusted.
C - Visually this look similar to the
D- It has rusted a little bit
E- Barley any rusting has occurred if any.
F- Rust has built up around the bottom.
G- The paint has protected the nail pretty well.
H- A lot of rust has built up around the nail
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