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Copy of The Solar System
Transcript of Copy of The Solar System
Our Solar System is our Sun and everything that travels around it. It is elliptical in shape. That means it is shaped like an egg.
The Sun is in the center of the solar system.
There are trillions of other stars in the universe just like it. Many of these stars have their own systems of planets, moons, asteroids, and comets.
The Sun is by far the largest object in the Solar System. 98% of all matter within the Solar System is found within the Sun.
This means that all the planets, moons, asteroids, minor planets, comets, gas, and dust would all combine to make up only 2% of all the matter in the Solar System.
The Sun is so large compared to everything else that the Earth could easily fit inside the Sun a million times. That is why it is able to hold on to the rest of the matter, causing everything else to orbit around it.
The closest planet to the Sun is
Because this planet lies so close to the Sun, and as a result somewhat near to Earth, it is visible to observers on Earth in the late evening or early morning sky. That is why it is called "the morning star" or "the evening star".
The surface of the planet Mercury is covered with craters.
The planet Mercury is too small and has too little gravity to hold onto an atmosphere. Any gases released from the planet quickly escape into space. That means that there is almost no air on Mercury.
Mercury rotates very slowly. That means that days are very long. One day on Mercury lasts about 58 Earth days long. Nevertheless, its revolution around the Sun is rather fast. It can complete one orbit around the Sun in only 88 Earth days. A year on Mercury lasts about 3 months here on Earth.
Venus is almost identical to the Earth in size, chemistry, gravity and density.
Venus is made up of almost the exact same types of materials as the Earth and in about the same amounts. Venus has volcanoes, mountains and sand, just like Earth. However, Venus is a deadly world where the surface temperature is hot enough to cook a meal in mere minutes.
Venus has no moons
The Earth is the biggest of all the terrestrial planets. A terrestrial planet is a dense planet found in the inner Solar System.
The diameter of Earth is 7,926 miles. The circumference measured around the equator is 24,901 miles.
There are currently almost 7 billion people living on the Earth. About 30% of the Earth's surface is covered with land, while about 70% is covered by oceans.