Across
- 1. a system of millions of stars held together by the gravitational attraction of each other comet is a piece of icy material that flies through space.
- 3. the star in which earth and the 7 other planets in our solar system orbit around.
- 4. A piece of rock or metal that has fallen from space and hit the Earth or the surface of another planet.
- 6. A small body of rock that enters Earth’s atmosphere but burns up and becomes a streak of light.
- 7. a giant fiery hot ball of gas that is held together by its own gravity. Stars are usually at the centre of solar systems and have enough gravity to pull planets from billions of kilometres away.
Down
- 2. the distance light travels in a year.
- 3. a celestial or artificial body that is in orbit of a planet or a moon.
- 5. celestial bodies that orbit around major planets, dwarf planets and minor planets.