Compléter Chapter 16 Stars and GalaxiesVersion en ligne Science Grade 5 practice test par Jeannine Gryn 1 black sunspots nebula hole Hydrogen spiral Milky Ursa spiral photosphere galaxy light constellation corona sun Major supernova black orbits year Way 88 chromosphere Greek 1 . The distance light travels in one year is a . 2 . A point in space that has such a strong force of gravity that nothing within a certain distance of it can escape is known as a . 3 . Stars form in a cloud called a . 4 . A group of stars that forms a pattern is called a . 5 . A gigantic explosion that occurs near the end of the life of some stars is a . 6 . A huge system of stars , dust , and gas held together by gravity is a . 7 . Some of the constellations got their names from ancient characters or animals . 8 . There are constellations . 9 . The Big Dipper is in the constellation . 10 . Dark spots moving along the face of the sun is known as . 11 . As Earth the sun , we view different parts of the universe with its different constellations . 12 . is considered fuel for the stars . 13 . A dwarf star is one that has no fuel to make its own energy . 14 . The is the closest star to Earth . 15 . The Milky Way is a shape . 16 . The is the name of our galaxy . 17 . Most galaxies that scientists have observed are in shape . 18 . The three layers of the sun's atmosphere from inner to outer are , , and .
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