Physics, 15.10.2019 08:10 fernandofhn1844
4. susan observed that different kinds and amounts of fossils were present in a cliff behind her house. she wondered why changes in fossil content occurred from the top to the bottom of the bank. she marked the bank at five positions: 5, 10, 15, 20 and 25 m from the surface. she removed 1 bucket of soil from each of the positions and determined the kind and number of fossils in each sample.
hypothesis:
independent variable:
dependent variable:
constant (at least one):
control:
number of groups:
number of trials per group:
Answers: 3
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4. susan observed that different kinds and amounts of fossils were present in a cliff behind her hou...
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