Key words 0.0 / 5 ? GeologyModule 1 - Earth StructureASOCR Created by: abbiemeggCreated on: 09-02-16 20:17 Sun star composed of hydrogen and helium (largest object at >99.8% of total mass) 1 of 13 Planet Sizable object orbiting a star 2 of 13 Moon Natural satellite orbiting a planet 3 of 13 Meteorites Fragments of rock which fall to earth from space. 4 of 13 Comet Composed of ice and dust. Outer layer melts to water vapor as its closer to the sun 5 of 13 Asteroids Rocky objects which failed to form a planet. 6 of 13 Solar system Sun, planets, their moons, comets and asteroids 7 of 13 Rheid Solid material that flows 8 of 13 Peridodite Ultramafic rock composed of the minerals olivine and pyroxene with a coarse crystal size 9 of 13 Olivine Dense, ferromagnesian silicate mineral 10 of 13 Partial melting A proportion of the minerals will have a lower melting point, allowing them to melt while the rest remains solid. 11 of 13 Kimberlites Fine grained, ultramafic igneous rocks. 12 of 13 Xenolith Fragment of foreign rock included in igneous rock which has come from a different source. 13 of 13
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