Declan & Angelica
Rust prevention experiment
Aim: To find out what prevents the process of rusting.
- Nail (metal) (rust able)
- Paint – any colour
- Tap water – 300ml
- Dip the nail into the paint.
- Place the nail on a couple of tissues.
- Leave the painted nail for two days.
- 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 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