The document provides instructions for students to identify rocks in pairs. Each pair will become experts on a set of rocks by completing a rock identification worksheet. This includes providing thorough descriptions of the rocks and ensuring safety procedures are followed when using acid. Students will then introduce their rock set to their table partners and make sure everyone has complete notes.

3. For your listening pleasure

6. Rock Identification A Type: Igneous Name: tuff 21 Type: Igneous Name: Scoria 19 Type: Igneous Name: pumice 17 Type: Igneous Name: obsidian 16 Type: Igneous Name: basalt, vesicular 13 Type: Igneous Name: basalt, fine 12 Type: Igneous Name: Granite 9 Type: Igneous Name: Granite 11

7. Rock Identification B Type: Metamorphic Name: Slate 20 Type: Metamorphic Name: quarzite 18 Type: Metamorphic Name: marble 15 Type: Metamorphic Name: Gneiss 14 Type: Metamorphic Name: Schist 1

8. Reflection page 26 Compare metamorphic and igneous rocks