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 + Sakt 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
