Constellations, Stars, Galaxies & Nebula PowerPoint: Stop getting lost looking for stars & constellations! This lesson not only teaches about the stars & constellations, but how to find them too!This PowerPoint on Locating Constellations, Stars, Galaxies and Nebula can be used for any Elementary, Middle, or High School science class/grade. The purpose of this PowerPoint is introduce students to many constellations, galaxies, and nebulae, and to show them how to find them in the sky,