Materials, such as sand and rocks, are constantly being added to land masses through the process of deposition. deposition occurs when the weights of the materials are greater than the forces that are transporting the materials.
jeremiah sets up an experiment to better understand the process of deposition. in his experiment, he places a pile of sand at the top of a tube. then, he pours water down the tube at varying speeds. finally, he measures the amount of sand that is deposited throughout the tube.
what is the test variable (independent variable) in jeremiah's experiment?
a.
the initial quantity of sand
b.
the speed of the water
c.
the type of tube that was used
d.
the quantity of sand in the tube
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