Across
- 5. The first four inner planets whose closest to the Sun.
- 7. this atom/ chemical element burns for only one (1) day
- 8. System, this consist of a medium-size star (Sun) and revolving planets.
- 10. the collision of atoms that clumps together forming into asteriods and eventually planets.
- 11. Disk, is a rotating disk of dense gas and matter surrounding a newly formed star.
- 13. this is one of the planets that mainly consist of H (Hydrogen) & He (Helium).
- 15. Is a planet orbiting around a star other than our Sun.
- 16. They burned at incredible levels, when cranked to the extreme, they will eventually consume all hydrogen then dies/explode.
- 17. this atom/ chemical element burns for 6 months.
Down
- 1. 11 times the size in (diameter) of Earth nad more than twice as big as all the other planets combined.
- 2. and Hydrogen, the first 2 chemical elements that can be found in the universe, these are two types of atomic matter that can be find throughout the universe
- 3. Brought together individually (Hydrogen and Helium) atoms to form gas cloud.
- 4. a massive explosion in the universe and the death of a dying star.
- 6. , scientist and Big historians uses this term to describe the condition of planets and universe.
- 8. it is the burning of carbon that takes for (numbers) years.
- 9. large clouds of dust and gas remain in the after math of the stars, these begins to pull and clump together forming into ___________.
- 12. Disk, The nebula's material that the sun didn't absorb whirled around it to form a flat disk of gas and dust.
- 14. this orbits around the earth, some planets have multiple of this, it is not a not a sun nor planets.