Aim- to find the best way to prevent rust. Partner: Marley B
- Beakers x 3
- Nails x 4
- Oil – 10ml
- Wax – 10ml
- Soapy water x 30ml
- Water x 50ml
- Tweezers x 2
- Petridis x 1
Step 1 fill 2 beaker with 50mls of water. And another beaker with 30mls water
Step 2 fill the other beaker with 30mls of water with 15mls of soap.
Step 3 fill 1 beaker with 10mls of oil.
Step 4 place 1 nail in oil, 1 nail in soapy water and 1 nail in water.
Step 5 get 10g wax and melt over Bunsen burner.
Step 6 get your melted wax and place in a Petridis.
Step 7 before the wax sets, place 1 nail in there and cover with melted wax.
|Oil– I predict that it will rust a tiny bit, because it isn’t a protective layer.||1 2:40 no change in colour or smell.||Because the oil, soapy water and water won’t be protective enough|
|Water- it will rust because of the air in water.||1:00 air bubbles have formed around the soapy water nail but no change.|
|Wax- no because it will form a solid layer||1:20 no change|
|Soapy water- no because of the air bubbles will provide the oxygen to cause rust.||3:00 rust has formed around the nails in the water, soapy water and oil but nothing on the wax nails.|
Result: as a result the oil, soapy water and water weren’t protective enough and caused rust to form.
Conclusion: in conclusion the wax proved to be the best at preventing rust because no rust formed.