Light, Emission Spectrum, & Big Bang Theory Crossword Puzzle

QUESTIONS LIST: hydrogen : this is the most abundant element in the universe, hubble : this law tells us galaxies that are farther away move faster, radiation : cosmic microwave background is leftover _ from the big bang, microwaves : _ are the types of waves that the universe is now filled with, fingerprint : each element has it's own set of spectral lines. they are like a star's _ , evidences : these are the three main _ for big bang theory: red shift, an abundance of hydrogen and helium, cosmic background radiation, direction : red and blue shifts in wavelengths are used to tell us the _ an object is moving, blue shift : this type of light shift occurs when 2 objects move towards each other, less : the longer the wavelength, the _ energy a wave has, redshift : this type of light shift is evidence that the universe is expanding, spectrum : studying a star's _ , we know what it is composed of and what direction it's moving, helium : this is the second most abundant element in the universe, more : the higher the frequency, the _ energy a wave has, expansion : there wasn't an explosion; it was actually an _ , universe : the big bang theory is the leading explanation of how the _ began.