4 1 solar system
3 31 2015 the universe & solar system
© 2014 wheresjenny.com Galaxies GALAXIES. © 2014 wheresjenny.com Galaxies Galaxies are defined as large groupings of stars, dust, and gas held together.
Formation of Galaxies Types of Galaxies. Learning Goals Students will: 1) Learn to classify types of galaxies 2) Explain the formation of galaxies.
