Summary
Rock collecting has never been quite like this! When the class forgets to do its homework, a fieldtrip through the Earth's crust, into the center of the Earth, and out through a volcano will teach them not to forget their assignments again - and then some!
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Unabridged
20 minutes
From the publisher
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Ann M. Martin
Alaya Dawn Johnson
Blue Balliett
Vicky Alvear Shecter
Emma Carroll
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