Grades: 2-6
Length: 1/11 Minute
Rights: Annual Lease

This show looks at three stones - a piece of igneous, a piece of sedimentary, and a piece of metamorphic rock - and investigates how they formed, and how they relate to one another through the rock cycle. The show begins billions of years in the past when Earth was a burning-hot gooey ball of melted minerals and metals called magma, and explains how a crust of rock cooled on the surface. The show then follows the process of weathering (mechanical, chemical, and biological), and explains how heat and pressure can metamorphose rock into yet another form. A touch of light-heartedness helps animate what otherwise is a heavy subject.

SOL Correlations; Teacher Guide; Blackline Masters at http://www.unitedlearning.com

Feeds 

Wednesday 12/5/07 3:45-4:00 a.m.