Comment: 07:56 - 08:34 (00:38)
Source: Annenberg/CPB Resources - Earth Revealed - 12. Minerals: The Materials of Earth
Keywords: halite, sodium, chlorine, atom, evaporation, lake, metal, gas, salt, mineral
|
Our transcription: A good example is halite.
Halite is a mineral that forms when sodium and chlorine atoms join during the evaporation of a lake.
By themselves, each of these elements is extremely dangerous.
Sodium, being an explosive metal; and chlorine, a poisonous gas.
Yet when they are joined together, sodium and chlorine combine to form something that most of us use all the time: ordinary table salt.
|
Geology School Keywords
|
