Across
- 2. The human eye can detect is visible light, colors in the visible portion of the spectrum.
- 4. Unique fingerprint that shows the light emitted and absorbed by stars
- 8. Transfer light energy from one point to another
- 10. Earth is divided into the Northern and Southern Hemispheres by the equator, horizontally around the middle of the earth
- 11. When comparing the sun and Betelgeuse, terms of temps,luminosity and stage of life
- 12. The color blue has a shorter wavelength, which means that a star or celestial object is moving toward the observer
- 13. The early universe contained 76% hydrogen and 24% helium
Down
- 1. Electromagnetic waves are used to carry out daily functions and to study the universe
- 3. The most widely accepted theory on the origin of the universe and states that all matter was in a single point
- 5. When a celestial objects spectral lines shift toward the end of the spectrum
- 6. daily rise and fall of sea levels and has gravitational forces
- 7. The distance between two crests (high points) or two troughs (low points)
- 9. The temperature of a star determines of the visible that it emits