Science Vocabulary

1. occurs twice a year where the sun crosses the celestial equator
8. a small body of matter from outer space that enters the earth's atmosphere
9. a small rocky body that orbits the Sun
13. layers of gases that envelop a planet, held in place by gravity
14. ball-shaped mass of super-heated gas that produces and gives off light, heat, and energy.
15. when a white dwarf runs out of fuel and dies
16. where the sun is obscured by the moon.
17. a powerful and luminous stellar explosion
19. earliest stage of a star’s life
20. a satellite that orbits the planet

2. consists of everything that exists
3. outer most layer of the Sun
4. a region of spacetime where gravity is so strong that nothing can escape from it
5. how all stars start, is a large cloud of gas and dust
6. only planet where water exists
7. the universe that we are in
10. groups of stars that look like recognizable objects
11. cosmic snowballs of mostly ice (frozen gases and rock)
12. a collection of many billions of stars held together by gravity
14. the star in the center of our solar system
16. the planet with visible rings
18. the blue planet