Rust Prevention Experiment

Declan & Angelica

Rust prevention experiment

Aim: To find out what prevents the process of rusting.


  • Nail (metal) (rust able)
  • Paint – any colour
  • Beaker
  • Tap water – 300ml


  1. Dip the nail into the paint.
  2. Place the nail on a couple of tissues.
  3. Leave the painted nail for two days.
  4. Put the nail into a 300ml beaker of tap water.
Independent Variable Dependent Variable Controlled Variable Control
The conditions we are changing are that we are coating the nail in paint and the submerging it into water. We will measure the amount of rust by measuring the surface of the nail that the rust has covered and how much we can see.       The paint

The temperature

The amount of paint


Our control will be a nail that hasn’t been coated in paint.






Q: Why don’t some metals rust?

A: Because the electrons of the metal aren’t attracted to the oxygen particles. If they were, the particles would come apart from the metal and it would rust.


Q: Why does it take some things longer to rust than others?

A: Because there might be less oxygen particles around the metal or because the metal is stronger and it’s electrons won’t be separated as easily.


Q: Why do materials rust?

A: Because the oxygen atoms attract the atoms that bind the metal together so the metal begins to become flaky and lose.


Q: What does rust look like?

A: Rough, brittle and doesn’t reflect any light.



Q:How can rust be prevented?

A: You can use paint and you can coat the metal so that no water or oxygen comes in contact with it.


Q: What can rust do?

A:The rust makes the metal feel rough and flaky while turning into a brown sort of colour.


Q: Can you reverse the process of rust?

A: No. All you can do is paint over it so you can’t see it or you could scrape it if but it would eventually rust again.


Q: What can make rust?

A: Vinegar, bleach, peroxide, salt (etc.) and for only some metals, oxygen



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