Facts You Might Not Know About our Planet Earth
- The Earth is estimated to be 4.5 billion years old. It travels through space at 660,000 miles per hour.
- The oldest rocks in the world, the so-called St. Peter and St. Paul stones in the Atlantic Ocean, are 4 billion years old.
- The Earth weighs 6,588,000,000,000,000,000,000,000 tons.
- The earth rotates on its axis more slowly in March than in September.
- If the Earth were compressed to a sphere with a 2-inch diameter, its surface would be as smooth as a billiard ball.
- The temperature of the Earth's interior increases by 1 degree every 60 feet down.
- If the world were to become totally flat and the oceans distributed themselves evenly over the earth's surface, the water would be approximately 2 miles deep at every point.
- Glaciers occupy 5.8 million square miles, or 10 percent of the world's land surface, an area as large as South America.
- The world is not round. It is an oblate spheroid, flattened at the poles and bulging at the equator.