Knowledge about EARTH

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  • Earth is referred to as the BLUE PLANET. WHY? Because from space, the oceans combined with our atmosphere make our planet look blue. .
  • It is the only planet whose name has not been derived from the Roman or Greek mythology? The name has originated from the 8th century Anglo Saxon word- Erda. This means ground or soil .
  • More than 80% of the earth’s surface is volcanic.
  • The Sun is 333,000 times as large as our earth.
  • Only 11 percent of the earth’s surface is used to grow food. .
  • 70% of the Earth’s surface is covered in water. .
  • Planet Earth rotates around the Sun at approximately 1000 miles per hour. .
  • The Earth is like a great big magnet,so it pulls everything towards it. This pulling force of earth is called gravity. .
  • Earth doesn’t take 24 hours to rotate on its axis.It’s actually 23 hours, 56 minutes and 4 seconds. .
  • A year on Earth isn’t 365 days .It’s actually 365.2564 days. It’s this extra .2564 days that creates the need for leap years. .
  • Earth has 1 moon and 2 co-orbital satellites .
  • Oceans occupy nearly 71 percent of the surface of earth .
  • Ten percent of the earth’s surface is covered by ice .
  • The deepest part of the Earth is Pacific Ocean , it is called the Mariana Trench. It is deeper than Mount Everest is high! .
  • Earth is the third planet from the Sun. This is also the fifth largest planet in the entire solar system.Earth is the only planet known to have life. .
  • The air on earth consists of around 78 percent nitrogen with 21 percent oxygen. This air also contains 1 percent of other ingredients.
  • The temperature of the earth’s interior increases by 1 degree every 60 feet down.
  • It takes eight and a half minutes for light to get from the sun to earth.
  • Geology is the study of the rocks that form the planet’s surface. Geologists examine rocks to find out about the history of the Earth and how Earth was formed.
  • Mount Everest is the highest mountain on Earth and its peak is 8848 meters above sea level. And amazingly it is gaining height
  • April 22 ,every year is celebrated as Earth Day.April 22 is the first official day of Spring in the Northern hemisphere and of Fall in the Southern hemisphere and was chosen to be Earth Day for this reason
  • The Earth’s atmosphere is composed mainly of nitrogen (77%), oxygen (21%), argon (.93%), and carbon dioxide (0.03%).
  • Earth has 3 layers,Crust (upper part),Mantle(middle part) & Core (inner-most part),out of these Crust is the lightest.
  • Seismometer is the device with which earth-quackes is measured.Richter scale shows intensity of earth-quake -that is how strong the waves are on seismometer.
  • Antartica is world’s longest glacier.
  • The Earth’s equatorial circumference (40,075 km) is greater than its polar circumference (40,008 km..
  • The highest recorded temperature on Earth is 136°F (58°C) in Libya in 1922..
  • The lowest recorded temperature on Earth is -128.6°F (-89.6°C) in Antarctica in 1983.
  • One fifth of land surface is covered by deserts
  • Astronomy is study of outer space , a person who works in this field is known as astronomer.
  • Nicolaus Coppenicus was ,the astronomer, who first realized that earth moves round the sun.
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One thought on “Knowledge about EARTH

  1. Pingback: Jacquel Rassenworth on Earth Day «The Jacquel Rassenworth Blog The Jacquel Rassenworth Blog

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