Across
- 4. the other type of gas that fuses in the Sun
- 5. a body of ice, rock and dust that orbits the Sun
- 8. to become a planet, the object must clear its _______ ____
- 9. meteoroid that entered the Earth's atmosphere
- 10. a meteor that struck land in Earth
- 13. a ring of gas and dust after a red giant dies
- 16. where asteroids can be found; in between Mars and Jupiter
- 18. how many miles is a light year?
- 19. how many stars are in our galaxy?
- 20. the measurement proportion used to enlarge or reduces actual measurement for a model
Down
- 1. a rotating disc of dust and gas that forms around a protostar
- 2. what is a star made of?
- 3. what do the most massive stars become?
- 6. to be a planet, the object must orbit a ____
- 7. cloud of dust and gas, helps with star making
- 11. how many stars are in our SS?
- 12. one type of gas that fuses in the Sun
- 14. what is the universe mainly made of?
- 15. a small body moving in the SS
- 17. what does a star leave behind after a supernova?