Science Grade 7
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12.1 Whats beyond our Solar System
12.1 Whats beyond our Solar System
12.1.1 The Big Bang Theory
12.2 Stars, Galaxies, Milky way and Star distances
12.2 Stars, Galaxies, Milky way and Star distances
12.2.2 Star Distance
12.2.3 Glaxies
12.2.4 Constellations
12.3 The Life of Stars
12.4 Looking at Stars
12.4 Looking at Stars
12.4.1 Safety tips for observing the sun
