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Aluminum is an abundant (2) metal (1) with many uses (3). It comes from bauxite (4), an ore (5) that looks like clay (6). Bauxite contains aluminum (7), along with several (8) other substances (9). Workmen extract these other substances (10) by grinding (11) the bauxite in (1) presure-filled (13) tanks. The other substances form a mass (14) which is removed (15) through filters (16). A liquid remains (17), which they put through several other processes (18). It finally yields (19) alumina (22), a powdery (20), white (21) chemical. This is a mixture (23) that contains aluminum (24) and oxygen (25). Workmen separate the aluminum from the oxygen (26) by using electricity (27). Finally a light (29) metal (28) which comes in many forms (33), is produced. It has a bright (31), silvery (32) luster (30).
Missing: # 12 "put it in tanks"Added IUs: Content errors: # 1 "grind [it] in ...tanks" |
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