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Earth Facts
" The Earth was small, light blue and so touchingly alone, our home that must be defended like a holy relic. The Earth was absolutely round. I believe I never knew what the word round meant until I saw Earth from space "
- Aleksei Leonov USSR
Total weight: 6,600,000,000,000,000,000,000 (6.6 sextillion) tonnes
Total land area: 148,300,000 sq km or 30% of the total surface area
Total water area: 361,800,000 sq km or 70% of the total surface area
The Earth's layers consist of:
The Mantle: 2 900 kms miles deep; solid rock composed of silicon, oxygen, aluminum, iron and magnesium
The Core: 22 500 km deep; composed of molten iron and nickel
The Inner Core: 1 290 km deep: Consists of solid iron and nickel heated to approximately 5 000 degrees Celcius
The Earth is surrounded by an atmosphere and magnetosphere that protect us from harmful ultraviolet rays and dangerous meteors
Highest temperature: 58 C recorded at Aziziyah, Libya
Lowest temperature: -89.6 C recorded at Vostok Station, Antarctica
Highest Land: Mt. Everest rises 8,848 metres above sea level
Lowest Land: The shore of the Dead Sea is 399 metres below sea level
