3. 100 200 400 300 400 Solar Systems & Night Sky Galaxies 300 200 400 200 100 500 100 200 300 400 Cosmology 100 500 Tools, Laws & Methods The Sun & Other Stars

4. Row 1, Col 1 This Law tells us the distance of a planet from the Sun if we know its period. What is Keplers Third Law?

5. 2,1 The method has found most of the known extrasolar planets. What is the radial velocity method?

6. 3,1 Gaseous planets and icy bodies formed beyond this location in our solar system. What is the Frost Line?

7. 4,1 This process built the planet we are standing on during the formation of the solar system What is accretion?

8. 5,1 This causes the seasons on Pluto What is the eccentricity of Pluto (or) What is the distance of Pluto from the Sun?

9. 1,3 This event leaves a neutron star behind. What is a massive star supernova?

10. 2,3 This allows us to determine the age of a cluster of stars. What is the main sequence turn off (TO) point?

11. 3,3 This is the second longest living type of star on the main sequence. What is a K Type Main Sequence Star?

12. 4,3 This supports a White Dwarf against gravitational collapse. What is electron degeneracy pressure?

13. 5,3 This is the first thing that happens when a star leaves the main sequence. What is a contracting core?

14. 1,2 This type of radiation has the lowest energy. What are radio waves?

15. 2,2 This tells us how the peak Wavelength of a blackbody Changes with temperature What is Wien’s Law?

16. 3,2 This tells us the distance to the nearest star cluster. What is stellar parallax?

17. 4,2 This tells us the composition of a cool low density gas. What is an absorption spectrum?

18. 5,2 This relation tells us how to determine mass from a rotation curve What is the orbital velocity Law (or orbital velocity-radius-mass relation)?

19. 1,4 The thirty or so galaxies around us belong to one of these. What is a galaxy group.

20. 2,4 These are the size of a solar system and more luminous than a galaxy What are Active Galactic Nuclei (AGN or Quasars)?

21. 3,4 Spiral galaxies of this type are more commonly found at small lookback times. What is a spiral galaxy with a bar?

22. 4,4 These galaxies have very high rates of star formation. What are starburst (or merging) galaxies?

23. 5,4 This is something that increases as a galaxy ages. What is metallicity (C,O,Fe) ?

24. 1,5 It tells us the distance to an object based on its Doppler shift. What is the Hubble Law?

25. 2,5 This is all around us and is evidence that the Universe started with a big bang. What is the Cosmic Microwave Background (CMB) ?

26. 3,5 This relation is used to find the distances to nearby galaxies. What is the Cephied Period-Luminosity relation?

27. 4,5 These objects are used to find the distances to very remote galaxies. What are white dwarf supernovae?

28. 1,5 This number tells us how the Universe will come to an end. What is the critical density of the Universe?