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Category 1-, Category 2 Category 3 Category 4 Category 5 5 pt 5 pt 5 pt 5 pt 5 pt 10 pt 10 pt 10 pt 10 pt 10 pt 15 pt 15 pt 15 pt 15 pt 15 pt 20 pt 20 pt 20 pt 20 pt 20 pt 25 pt 25 pt 25 pt 25 pt 25 1pt whats the half life of C14? 2 5700 years 3 Compare mafic and felsic rocks. 4 Felsic rocks are lighter in color and less dense 5 How does rock size affect porosity? 6 Porosity remains constant 7 What does heliocentric mean???????? 8 It revolves around the sun 9 What is geocentric 10 Everything revolves around the earth 11 You need ____ locations to determine where the epicenter Is located 12 At least 3 13 P arrival-P travel= __________ 14 Origin time 15 What makes a metamorphic rock metamorphic? 16 Banding, foliation, recrystallation, high density 17 What makes sedimentary rocks sedimentary? 18 Layers, grainy texture, fossils 19 What makes an igneous rock igneous? 20 Melting, glassy texture, air pockets, crystals 21 What is the term for an object being closest to the object it is revolving around? 22 Perihelion 23 What makes a solar eclipse? 24 The moon being directly between the earth and the sun 25 Where do planes fly in the earths atmosphere? 26 Troposphere 27 What is the most abundant material in earths lithosphere 28 oxygen 29 What material has the highest specific heat? 30 Liquid water 31 What makes a lunar eclipse occur? 32 A full moon 33 What type of rock forms oceanic crust? 34 basalt 35 What controls the movement of ocean currents 36 Prevailing winds 37 What planets day Is longer than its year? 38 Venus 39 What causes tides? 40 The moon 41 What is the best evidence that earth rotates on its axis? 42 The changing altitude of the noontime sun 43 Which season is the earth closest to the sun? 44 Winter, dec 21 45 Obsidians glassy texture indicates that it… 46 Cooled quickly on earths surface 47 A focult pendulum to change its direction of swing because earth… 48 Spinning on its axis 49 What soil characteristic allows for greater amounts of water retention? 50 Small size particles 51