1. sterling silver
   pure silver
2. Britannia silver

Silverware and silver jewelry are usually made of sterling silver, which is soft and vulnerable to tarnishing.

1. exposure to nitrogen
   exposure to oxygen
2. exposure to water

Silver tarnishes when it is exposed to high levels of oxygen.

1. dry milk
   salt
2. baking soda

Mix one tablespoon of lemon juice, half a cup of instant dry milk, and one and a half cups of water in a bowl and soak your sterling silver in the mixture.

1. 5 minutes
   1 hour
2. overnight

Soak the silver in the mixture overnight, then rinse it and dry it thoroughly.

1. Dip the silver in olive oil.
   Pour lemon juice on the silver.
2. Rub lemon rind on the silver.

For a quick polish, just pour lemon juice over the tarnished pieces of silver and polish them with a soft cloth.

1. lemon and salt
   lemon and sugar
2. lemon and paprika

Clean brass and copper objects by dipping them in a mixture of lemon and salt. The salt helps by working the acid from the lemon deep into the tarnish, so that the tarnish is easily removed.

1. in fixtures
   in pipes
2. both of the above

Pipes, fixtures and decorative objects throughout the house are often made from copper and brass.

1. They become brittle.
   They turn green.
2. They crack.

Copper and brass turn green when they tarnish. It is important to take time to clean them when you see them start to turn funny colors.

1. baking soda
   milk
2. salt

Mix baking soda with lemon juice till it forms a paste. Use this on your copper or brass to remove tarnish.

1. It burns off the tarnish.
   It melts off the tarnish.
2. It scratches off the tarnish.

This mixture has an abrasive texture, as a result of the salt and cornmeal, which gently rubs off the tarnish from the soft metal surface.