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Global Warming
Added: 2nd July 2007
Posted By: teachme
Views: 272
Comments: 0

A descriptive video on global warming.

Tags: global warming wind solar power oil air environment
Mercury Hg
Added: 19th July 2007
Posted By: teachme
Views: 317
Comments: 0

Name: Mercury Symbol: Hg Atomic Number: 80 Atomic Mass: 200.59 amu Melting Point: -38.87 °C (234.28 K, -37.966 °F) Boiling Point: 356.58 °C (629.73 K, 673.844 °F) Number of Protons/Electrons: 80 Number of Neutrons: 121 Classification: Transition Metal Crystal Structure: Rhombohedral ...

Tags: Mercury thermometers barometers Hg batteries element silver liquid