Across
- 1. Fill in the gap, the life cycle of a star- main sequence star, red giant, n_____, white dwarf.
- 2. The melting of the ice is causing rising sea levels, this is evidence of Global W_______.
- 4. The theory that says the universe began as a signal point and uses redshift and cosmic microwave background as evidence is the B___ ____ Theory.
- 6. Carbon enters the food chain through P_________.
- 7. The Hertzsprung-Russell diagram is a graph of absolute magnitude and t_________.
- 8. when a distant star has exploded it takes years to reach Earth, so when when we see it we are really looking into the p_____.
Down
- 1. Nitrogen fixing bacteria is part of the N_______ cycle.
- 3. In the water cycle rain is called p__________.
- 4. The lithosphere, atmosphere and hydrosphere are a part of the b_________.
- 5. The red shift displayed from some stars shows their M______ away from earth.