Chemistry test 2 0.0 / 5 ? ChemistryThe earth and its atmosphereGCSEWJEC Created by: Mathilde.HickmanCreated on: 07-02-17 18:31 How hot is the inner core? 5,500 degrees 1 of 21 Who came up with continental drift? Alfred Wegener 2 of 21 What was the evidence for continental drift? continents were like a jixaw, there were identical fossels on opposite sides of earth 3 of 21 why didnt scientists accept continental drift Wegener couldnt explain how it happened, they said there were "land bridges" 4 of 21 When was continental drift theory accepted? why? in the 1950s because scientists found new evidence which supported the theory 5 of 21 How do the plates move? convection 6 of 21 what is a convergent boundery? one plate goes under the other 7 of 21 what is a divergent boundery? plates move appart 8 of 21 whats a concervitive boundary? plates rub against each other 9 of 21 Whats the order of the amount of gasses in out atmospher? nitrogen-okygen-carbon dioxide-other 10 of 21 What are the problems with increasing carbon dioxide global warming, climit change, greenhouse layer 11 of 21 what is fractional distilation? seperating gasses based on unique boiling points 12 of 21 what is the equation for combustion? methane+oxygen=carbon dioxide+water 13 of 21 what is the equation for incomplete combustion? methane+not enough oxygen=carbon methane+water 14 of 21 how does carbon methane effect us? stops oxygen entering haemoglobin 15 of 21 what are the products of combustion? carbon dioxide and water 16 of 21 what causes acid rain? during combustion oxygen reacts with sulfer or nitrogen 17 of 21 what is the affects of acid rain on the envirment? burns leafs and plants, poisens fishies 18 of 21 How can we manage change in the envirment? use less fossel fules, resycle, reduce energy used at home, use public transport 19 of 21 how do you measure rates of reaction? the amount of product made within a certian time 20 of 21 What happens when liquid is heated? particles gain energy, move and vibrate more, particles gain enough energy to pull away from the liquid 21 of 21
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