ELAJ+4-3



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=Section 3 Mineral Resources=

Vocabulary:

 * gemstone** - a mineral that has a brilliant or glassy luster and is hard and colorful.
 * ore** - a rock with an economically useful mineral or metal in it.
 * smelting** - separating the other elements, in the ore, and the useful metal or mineral.
 * alloy** - is a solid mixture made of two or more metals.

Outline:

The Uses of Minerals Ores Prospecting Mining Smelting
 * Gemstones
 * Many uses
 * decoration
 * jewelry
 * mechanical parts
 * grinding
 * polishing
 * Examples
 * sapphires and rubies
 * Metals
 * able to be
 * stretch into wires
 * flattened into sheets
 * hammered and molded without breaking
 * Examples
 * iron
 * aluminum
 * copper
 * silver
 * gold
 * Other Useful Minerals
 * Uses
 * foods
 * medicines
 * fertilizers
 * Building materials
 * Examples
 * talc
 * quartz
 * a prospector is a person who prospects
 * three types of mining
 * strip mining
 * open pit mining
 * shaft mining