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Transcript
Mysteries of the Universe Fadeeva Tanya Kobegina Vika The 8th Class School №196 The aims of the project: •to find the definition “Solar System”, •to tell about some interesting facts about our solar system, •to find out why people are so interested in exploration of our Universe. What is the Universe? What is the solar system? The Sun The Sun is a yellow dwarf star. It is believed to be over 4 billion years old. It is nearly 99% of the galaxy mass. The Moon The Moon is the Earth's only natural satellite and the fifth largest satellite in the Solar System! The Moon is like a desert. The Moon travels around the Earth in an oval shaped orbit. Meteorites Meteoroid is a piece of stone-like or metal-like debris which travels in outer space. Very bright meteors are known as fireballs. A small number of meteorites have been shown to be of Lunar (23 finds) or Martian (22) origin. Stars Stars formed from gas- dust environment as a result of gravitational compression. The temperature in the center of the star is around 10-12 million Kelvin. There are different groups of stars: Red Dwarfs, Yellow Stars, Blue Giants. Asteroids The Asteroid Belt An asteroid is a bit of rock. Most of the asteroids in our solar system can be found orbiting the Sun between the orbits of Mars and Jupiter. Asteroids can be a few feet to several hundred miles wide. The Dwarf Planets Comets A comet's tail can be millions of kilometers in length. About 100,000 million comets orbit the Sun. What seems to be light from the comet is actually a reflection of our Sun's light. Why do we explore space? To sum up Our planet is one of the unique planets in the huge universe.
