Pre-lesson of Unit 13 (corrosion of metals and their protection) by padlet https://padlet.com/pad03_32/vc9q6wd6mhvacdt7 en-us 2024-09-09 01:43:51 UTC 2024-09-10 03:30:55 UTC hello@padlet.com 4D19 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108743876 Water vapour in the air.

]]> 2024-09-09 03:00:55 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108743876 4A25 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108745456 oxygen and water

]]> 2024-09-09 03:01:38 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108745456 4A26 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108745819 Avoid exposure to air and apply galvanised square steel

]]> 2024-09-09 03:01:48 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108745819 4D08 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108747086 Corrosion is the process by which certain materials, metals and non-metals !?

“Rusting” be like um…. Iron? Or other? Or rubbish ?

]]> 2024-09-09 03:02:26 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108747086 4D19 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108747116 Humid air.

]]> 2024-09-09 03:02:27 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108747116 4b11 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108747485 water

]]> 2024-09-09 03:02:39 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108747485 4C23 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108747897 When the humidity is high or wet conditions

]]> 2024-09-09 03:02:54 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108747897 4B9 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108749236 Oxidation

]]> 2024-09-09 03:03:38 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108749236 4D08 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108749924 Water, Oxygen.

]]> 2024-09-09 03:04:01 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108749924 4C08 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108750357 Avoid react with air and put galvanise on square steel

]]> 2024-09-09 03:04:11 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108750357 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108750403 water and oxygen

]]> 2024-09-09 03:04:12 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108750403 4A15 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108751438 Humidity

]]> 2024-09-09 03:04:49 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108751438 4B16 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108751531 Water

]]> 2024-09-09 03:04:51 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108751531 4C 08 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108751655 Oxygen

]]> 2024-09-09 03:04:55 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108751655 4D08 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108751663 Apply Oil. : (

]]> 2024-09-09 03:04:56 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108751663 4C22 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108751800 I think corrosion is something put into acid than the thing put into the acid will be fester.

Rusting is make some metal be fragile.

]]> 2024-09-09 03:04:59 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108751800 4A06 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108757309 Oxygen and water

]]> 2024-09-09 03:07:14 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108757309 4C 08 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108757372 Humidity is high and in wet places

]]> 2024-09-09 03:07:16 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108757372 4C20 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108758193 Oxygen

]]> 2024-09-09 03:07:41 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108758193 4D19 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108758766 We can store the metal(ex.Iron) in a place that is hard to contact with the oxygen and water(ex. oil)

]]> 2024-09-09 03:08:00 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108758766 4A06 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108758977 High humidity

]]> 2024-09-09 03:08:09 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108758977 4D05 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108758980 I think rusting is a part of corrosion.

Corrosion is corrosion.

]]> 2024-09-09 03:08:09 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108758980 4B16 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108759051 In places that have wet air

]]> 2024-09-09 03:08:11 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108759051 4C22 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108760625 touch water

]]> 2024-09-09 03:08:59 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108760625 4D03 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108761526 Oxygen

]]> 2024-09-09 03:09:27 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108761526 4D08 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108762097 Keep the things in water and it can’t breath the air. :(

]]> 2024-09-09 03:09:43 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108762097 4C 08 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108762893 I think corrosion is put a metal into acid and it becomes smaller

Rusting makes metal to become damaged

]]> 2024-09-09 03:10:08 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108762893 4D05 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108763297 Water

]]> 2024-09-09 03:10:19 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3108763297 4B16 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109015823 Have Plastic or oil cover the metal?

]]> 2024-09-09 05:39:52 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109015823 4B16 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109020101 I think rusting is metal covered by water and oxygen, causing them to become rusty?

]]> 2024-09-09 05:42:00 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109020101 4C06 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109619915 Metal that react with the surrounding substance and become smaller in size.


Metal that react with oxygen in air and become an oxide.

]]> 2024-09-09 12:13:29 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109619915 4C06 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109623028 Oxygen

Acid

Water

]]> 2024-09-09 12:15:15 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109623028 4C06 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109627184 High temperature

Humid environment

Acidic environment

]]> 2024-09-09 12:17:41 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109627184 4C06 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109638533 Cover metal with paints

Store in a cool and dry place


]]> 2024-09-09 12:23:06 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109638533 4D19 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109658687 1.Corrosion is a damage of a material (rock, body part, iron)

2.Rusting is a process that makes a metal(eg. Iron) surface become red or orange coloured rust.

]]> 2024-09-09 12:33:35 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109658687 4A15 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109670446 water vapour and moisture

]]> 2024-09-09 12:39:45 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109670446 4A15 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109683787 prevent putting metals at places with high humidity

]]> 2024-09-09 12:46:37 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109683787 4A15 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109770530 corrosion is damage caused to metal, stone, or other materials by corrosion.

rusting is the interaction of metals and water that produces rust

]]> 2024-09-09 13:27:31 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3109770530 4C22 https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3111126933 Water vapour in the air

]]> 2024-09-10 03:30:55 UTC https://padlet.com/pad03_32/vc9q6wd6mhvacdt7/wish/3111126933