scientific method1.2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| scientific method | logical approaches to scientific research
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| What is the order of the scientific method | 1.state the problem 2.gather information 3.form a hypothesis 4. test hypothesis 5.state a conclusioon
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| observation | using the senses
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| dinosaurs dominated the earth for ________ years | 135 million
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| dinosaurs became extinct _____ years ago | 65 million
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| measurement | involves the comparision of some aspect of an object
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| accuracy is in ________ measurements | scientific
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| scientist study _____________ that date back to the dinosaur disaperance | rock layers
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| scientist discovered that in certain locations the rocks that dated back to 65 million years ago contained ________ | iridium
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| iridium | a substance that is uncommon in earth rocks but common in meteors
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| hypothesis | a possible explanation or solution to the problem
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| a hypothesis is based on _____________ | facts gathered
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| dinosaur hypothesis states | that about 65 million years ago a giant meteorite hit the earth impact caused raised enough dust to cover sun's rays
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| experimentation | a scientific procedejure carried out by certain guide lines
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| variable | a factor in an experiment that can be changed
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| controlled experiment | an experiment set up to test a variable
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| compared model | simulating certain conditions
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| scientist determined that a meteor ____ meters in diameter couled suffiecently lower the earth's temperature | 10
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| how many miles wide is 10 inces in diameter? | 6 miles
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| tektills | natural glass formed by phenominal heat
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| what are the other possible causes for dinosaur extinction | A.volcano b. supernova c.flood d.caterpillarse.climate change
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| hypothesis will be ______,_____,or ________ | accepted, altered, or discarded
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| meteoriote hypothesis | impact hypothesis not proved
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| Gaia | greek godess mother of earth
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| Earth has supported life __________ | 4 billion years
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| gaia means | earth
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| homeostasis | the state of balance that the boy maintains
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| pan means | all
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| pangea means | all earth
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