Match these items with their examples.

1. liquid solution
milk

2. solid solution steel

3. compound
aluminum foil

4. colloid
soda
5. element. salt

1. liquid solution: soda  

2. solid solution: Steel

3. compound:Salt

4. colloid: milk  

5. element: aluminum foil  

Explanation:

1. Soda is a mixture of water, carbon dioxide gas, and solid sugar. Sugar is dissolved in water, and carbon dioxide is dissolved in water under pressure

2. Alloys, like steel, are solid solutions made up of one metal and one or more metal or non-metal elements.

3. Salt is an ionic compound composed by sodium and chlorine.

4. In a colloid  large molecules or ultramicroscopic particles of one substance are dispersed through a second substance; at first sight they are confused with solutions because dispersed molecules are not evident . Milk is a mixture of liquid fat-globules dispersed and suspended in water

5. Aluminum foil  is olly composed by one element, aluminium

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).