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Boat-in-Pool Puzzler
Boat 1

Here we have a boat in a swimming pool. In the boat is an inquisitive experimenter. Also in the boat is a rock.

Our experimenter picks up the rock and tosses it into the pool. The rock sinks to the bottom. No water leaves the pool from the splash made by the rock.

Now for the question: Does the pool's water level rise, lower, or stay the same?

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