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- Earth is the third planet from the sun in our solar system. Its name comes from the the old English and Germanic words meaning ‘the ground’.
- Our amazing planet has been around for quite some time. By researching our planet’s rocks, scientists have calculated the Earth to be around 4.5 billion years old!
- Like all the planets, Earth orbits (travels around) around the sun. And it does so at some serious speed –– around 30 kilometres per second, in fact!
- Have you ever wondered why we have different seasons? We’ll tell you –– it’s because the Earth is tilted 23.4 degrees on its ‘axis’, an imaginary line straight through the middle of the planet form the North Pole to the South Pole.
Scientists believe that Earth is about 4.6 billion years old. Earth’s surface has changed greatly since it was first formed. Some changes have taken place over millions of years as wind and water have eroded, or worn away, the land. Erosion has created features such as the Grand Canyon. The climate on Earth has also changed since it was first ...
Geography. is the study of the world, but as the world is a large and complex place, the subject is divided up into two main areas - human geography and physical geography. The study of the ...
- Structure and Surface
- Time on Earth
- Earth’s Neighbors
- Quick History
- What Does Earth Look like?
Earth is a terrestrial planet. It is small and rocky.Earth's atmosphere is the right thickness to keep the planet warm so living things like us can be there. It’s the only planet in our solar system we know of that supports life. It is mostly nitroge...One year on Earth lasts 365.25 days. That 0.25 extra means every four years we need to add one day to our calendar. We call it a leap day (in a leap year).Earth has just one Moon. It is the only planet to have just one moon.Earth has lots of spacecraft watching it. There is still a lot we can learn about our home planet.Earth is the third planet from the Sun in our solar system. That means Venus and Mars are Earth’s neighboring planets.We have known about our planet since ancient times, of course. But we didn’t know our place in the solar system for a long time.
This Apollo 11 picture taken by an astronaut in 1969 shows the Earth rising over the Moon. Doesn't it look small? This is a view of Earth looking just at the northern portion. A NASA camera on the Deep Space Climate Observatory satellite took this picture of the entire sunlit side of Earth from one million miles away.
Oct 4, 2017 · This article is for students grades 5-8. Earth is our home planet. Scientists believe Earth and its moon formed around the same time as the rest of the solar system. They think that was about 4.5 billion years ago. Earth is the fifth-largest planet in the solar system. Its diameter is about 8,000 miles.
geographic or geographical (adjective): relates to geography and refers to the features and location of an area. geographer (noun): origin: geōgraphos 'geographer', from gē 'earth' + graphic 'write, draw'. Refers to a profession, a person who studies geography, the environment and people. This is somebody who works with maps or works with ...
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What does Earth look like from Outer Space?
Energy flows through and among the spheres of Earth’s system. The vast majority of energy entering Earth’s system is solar energy, the energy of sunlight. A small fraction of energy enters the system as geothermal energy from deep within Earth’s interior. Energy can be transferred through Earth’s system in many forms.
