* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Document
Lunar theory wikipedia , lookup
Tropical year wikipedia , lookup
History of astronomy wikipedia , lookup
Corvus (constellation) wikipedia , lookup
Astronomical unit wikipedia , lookup
Geocentric model wikipedia , lookup
Discovery of Neptune wikipedia , lookup
Aquarius (constellation) wikipedia , lookup
Dialogue Concerning the Two Chief World Systems wikipedia , lookup
Astrobiology wikipedia , lookup
Rare Earth hypothesis wikipedia , lookup
Dwarf planet wikipedia , lookup
Naming of moons wikipedia , lookup
Solar System wikipedia , lookup
History of Solar System formation and evolution hypotheses wikipedia , lookup
Late Heavy Bombardment wikipedia , lookup
Planets beyond Neptune wikipedia , lookup
IAU definition of planet wikipedia , lookup
Extraterrestrial skies wikipedia , lookup
Extraterrestrial life wikipedia , lookup
Comparative planetary science wikipedia , lookup
Formation and evolution of the Solar System wikipedia , lookup
Planetary habitability wikipedia , lookup
The Solar System Study Guide 1. The solar system is made of the Sun and its eight planets along with many dwarf planets, moons, asteroids, and comets 2. The known planets in the solar system are: Mercury, Venus, Earth , Mars, Jupiter, Saturn , Uranus, Neptune and what was once known as Pluto is now a dwarf planet. 3. A full movement is called a revolution. 4. Gravity keeps the moon orbiting around Earth 5. The earth spins around an imaginary line called an axis 6. The Earth completes one rotation, or one day in 24 hours. 7. Mercury is a small rocky planet with many craters on its surface it is the closest planet to the sun 8. Venus is the second planet from the sun and is covered by clouds of water vapor a sulphuric acid. 9. Earth is the Third planet from the sun. It is the only planet to have water on its surface, it is the only planet that has life. 10. Mars is the fourth planet from the sun, it is known as the Red Planet. 11. Jupiter is the fifth planet from the sun and is the stormiest planet in our solar system and has a whirlpool of permanent storms. 12. Saturn is the sixth planet from the sun; it is surrounded by rings, and has at least 18 moons. 13. Uranus is the seventh planet from the sun; it is the smallest of the gas planets. Uranus contains a frozen mass of methane and ammonia, and has 27 moons. 14. Neptune is the eighth planet from the sun; it is a gas giant. Neptune is composed of hydrogen and helium and contains 13 moons. 15. A comet is a frozen mass of different types of ice and dust orbiting the sun. 16. An asteroid is a rocky mass up to several hundred kilometers wide that revolves around the sun. 17. The moon is the Earths only natural satellite. 18. Moon phases are the shapes of the lit side of the moon we can see. 19. A lunar month is when the moon changes from thin crescent to a full moon and back again to a crescent in 29 days. 20. The five different types of stars are the red dwarf star, yellow star, blue giant stars, giant star, and super giant star. 21. Moon phases