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space
space,celestial objects and the origin of the universe
| Question | Answer |
|---|---|
| what is astronomy | The Science that deals with the universe beyond the Earth’s atmosphere ( the study of space) |
| what are celestial bodies | Naturally made objects outside the Earth’s atmosphere |
| what are some celestial bodies | Planets Stars Moons Comets Asteroids |
| what is a star | is a celestial body that generates its own light and heat and consists of a mass of gas held together by its own gravity |
| what are stars that do not generate their own heat and light called | neutron stars |
| what is a planet | celestial body that is in orbit around a star. |
| what must a planet do to be a planet | Be in orbit around a star Has enough mass to form an almost round shape due to its own gravity Have “cleared region” around its orbit of other celestial objects |
| what is a moon | a celestial body that orbits a planet (a body that orbits a larger body) |
| what is an asteroid | a small rocky celestial body that orbits the sun |
| where do most asteroids lie | Most lie between Jupiter and Mars |
| does an asteroid have a spherical shape | no |
| how big is an asteroids diameter | few kilometres to a few hundred kilometres |
| what are asteroids also known as | minor planets |
| where are most of the asteroids in our solar system | Most of the asteroids in our solar system are clustered between Mars and Jupiter |
| what is the name of the region in which the most asteroids in our solar system are found | his region is known as the asteroid belt |
| what is a comet | a dusty snowball (made of ice and dust) which orbits the sun |
| is a comets orbit a circular path | no |
| what is the region where billions of comets are found | Billions of comets are found at the edge of the solar system in a region known as the Kuiper belt |
| what happens when a comets orbit around the sun gets disturbed | When this happens they begin to move toward the sun The sun melts some of the ice and a tail of gas, ice and dust form as a result The sun reflects off the tail when we see a comet |
| what is a solar system | A solar system a group of planets, asteroids, comets and other celestial bodies that are in orbit around a star |
| is our solar system the only solar system | no |
| WHAT IS THE SIZE OF THE SOLAR SYSTEM LIMITED BY? | The distance that the gravity of the star has to attract other celestial bodies |
| what percentage of the solar systems mass does the sun contain | 99.9% |
| The eight planets (in order of distance from the Sun | Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune |
Created by:
JMahango
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