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ARC-Easy / TAKS_2009_8_29 / Some students measure the mass of a small pile of leaves before and after the…

Problem

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question

Some students measure the mass of a small pile of leaves before and after the leaves decompose. Each time the students measure the mass, they place a container with the decomposing leaves on a balance. Before recording the mass of the leaves, the students must do which of the following?

choices

  • Subtract the mass of the container
  • Add leaves from other plants to the container
  • Allow the leaves to settle in the container for a few days
  • Use a metric ruler to measure the volume of the container

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