When studying rocks, the Friz knows it's best to go directly to the source
NARRATOR: Polly Adams, Cassandra Morris & a cast of kids
FORMAT: 1 CD, Unabridged 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
NARRATOR: Polly Adams, Cassandra Morris & a cast of kids
FORMAT: 1 CD, Unabridged 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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