The level 1 earth science manuals include 12 interesting lessons which include reading material, a quiz and a hands-on enrichment activity. The Igneous Rocks Manual includes lessons on where igneous rocks form, physical properties, density and specific gravity, Bowen's chart, rock forming minerals and others. Igneous rocks form during volcanic eruptions, which are some of the most awe-inspiring events on Earth. Students learn to identify igneous rocks that were blown out of a volcano during an eruption, formed in a lava flow or cooled underground. Students also learn how crystal size and color are major keys in identifying different igneous rocks. This manual on CD is designed for lower elementary students.

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