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Aluminum is a metal (1), it is very abundant (2), and has many uses (3). It comes from bauxite (4), bauxite is an ore (5) and looks like clay (6). Bauxite contains aluminum (7) and several (8) other substances (9). Workers extract substances from bauxite (10) and then (1) grind (11) it. They put pressure (13) in tanks to form a mass with the other substances (14). Then they remove (15) the mass and with (2) the remaining liquids (17) they use filters (16), and put it through several other processes (18). The final chemical is white (21) and powdery (20) and is called alumina (22). It is a mixture (23) that contains aluminum (24) and oxygen (25). The worker use electricity (27) to separate the aluminum from the oxygen (26). The final product is a metal (28). The metal is light (29) and has a bright (31) silvery (32) luster (30). The metal comes in many forms (33).
Missing: # 12 "put it in tanks" [Implied]Added IUs: Content errors: # 1 "and then" [Grinding is part of the procedure for the extraction. It does not happen after the extraction] |
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