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Ch.20 Solar System!
How the solar system is formed
| Question | Answer |
|---|---|
| A large cloud of gas and dust in interstellar space A region in space where stars explode at the end of their lives | Nebula |
| The cloud of dust and gas that formed our solar system | Solar nebula |
| The combination of the nuclei of small atoms to form a larger nucleaus releases energy | Nuclear fusion |
| A dark area of the photosphere of the sun that is cooler than the surrounding areas and that has a strong magnetic field | Sunspot |
| The thin and solid outermost layer of the mantle | Crust |
| The central part of the earth below the mantle | Core |
| The layer of rock between the earths crust and core | Mantle |
| The spin of a body on its axis | Rotation |
| The path that a body follows at it travels around another body in space | Orbit |
| The motion of a body that travels around another body in space one complete trip along an orbit | Revolution |