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ARC-Challenge / LEAP_2001_8_10379 / Jo Anne took a large beaker of clean water and carefully added one drop of blue…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

Jo Anne took a large beaker of clean water and carefully added one drop of blue food coloring to the edge of the water's surface. She did not touch or move the beaker. At first, she saw blue streaks as the food coloring sank into the water, but gradually the color of the entire beaker of water became evenly blue. What caused the blue food coloring to be mixed throughout the water?

choices

  • Water molecules hitting the food coloring molecules caused the mixing.
  • Light shining on the surface of the water caused the mixing.
  • A chemical reaction between the water and the food coloring formed a new, light blue compound.
  • The water interacted with the food coloring, causing the blue color to fade.

Discussion

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Source and history

upstream_id / Original problem ID
LEAP_2001_8_10379
task_id
6b7f3223-a8ec-57a7-b31f-fe96367e1b0e
task_key
ARC~2dChallenge--test--LEAP~5f2001~5f8~5f10379
task_revision_id
1
config / split
ARC-Challenge / test

Official source

initial import