Describe three kinds of radiation emitted by radioactive materials. Describe what eventually happens to each kind of radiation after it is emitted. Technically speaking, what is wrong with calling a rock that strikes the surface of the Moon a meteorite? Again speaking technically, what should you call a rock that strikes the surface of the Moon or any planet other than Earth? Explain. What does the color of a star indicate about the surface temperature of the star? What is the relationship between the temperature of a star and the spectrum of the star? Finally, describe in general the spectral classification scheme based on temperature and stellar spectra. Describe the Internal Structure of Jupiter and Saturn and Explain the Planetary Rings