Across
- 3. This color of star is cooler and darker than other stars
- 5. Evidence based solely on fact
- 7. Pluto, Ceres, and Makemake are all examples of this kind of planet
- 9. The sun is made of this
- 10. When you prefer one thing over another
- 13. This is the outermost layer of a star
- 14. Evidence based on a story someone told you
- 17. This color of star is hotter and brighter than other stars
- 18. This kind of telescope bends light toward the viewer
- 20. The outer planets are all made of this
- 21. The faster a particle moves, the ____ it gets
Down
- 1. The moon has large, dark sections of igneous rock called what?
- 2. The most dangerous part of the EM spectrum
- 4. We use this part of the EM Spectrum for thermal imaging, Bluetooth, and remote controls.
- 5. A substance made of only one kind of atom
- 6. This kind of telescope bounces light towards the viewer
- 8. This man used the Doppler effect to figure out that stars were moving
- 11. The solar system is heliocentric. Helio means what?
- 12. The center of a star is called...
- 15. A ball of ice and rock that flies in a predictable orbit around the sun
- 16. The tail of a comet always points this direction from the sun
- 19. The inner planets are all made of this