(Does it have a lot of flat, shiny faces – may be tiny or small - that reflect light like … Key Concepts: Terms in this set (21) Magma. This melted rock is called magma when it is inside the earth. Lab Activity: Rock Cycle 2. B 6. A54.1 Below each picture, write the name of the mineral. Check out http://igg.georockme.com for an online practical study guide for students and teachers. Sample 28: The pink coloured minerals are most likely . To understand and identify igneous rocks, you cannot be shy about addressing the rocks. Magma that flows out of earths surface. Preexisting rock is altered through heat and pressure. The rapid cooling does not give the crystals enough time to grow large. They will practice using a dichotomous key in order to ID their rocks. IGNEOUS ROCKS. B 4. BIGGER CRYSTALS means SLOWER COOLING. It went faster/slower ! Molten rock inside earths crust. In which location would you most likely find an igneous rock? Sedimentary and metamorphic rocks, on the other hand, are generally derived from preexisting rocks. Go to Color/Texture Key As a first approximation, a classification based on color and texture is ok, but can lead to great mistakes. Igneous rock. Igneous Rock Identification. You need to: Crystals will grow BIGGER when they have MORE TIME to cool. Igneous rocks that form above ground are extrusive. Draw a diagram and describe the rock cycle- 8. Title: Microsoft PowerPoint - KEY - Igneous Rock Identification Lab Author: JenkinHM Created Date: 2/27/2019 9:41:38 AM B ESS_Igneous_Rocks_ANSWERS.pdf Rock Types and Formation Igneous Lab Key page 2 of 3 ! a. quartz b. biotite c. orthoclase *This is another word for Potassium feldspar d. Ca-rich plagioclase 2. Igneous Rock Lab. Tags: Question 4 . Page 1 of 1. THE ROCK KEY Use this key to ask and answer questions on your unknown rock specimens. Answer Key ESS Igneous Rocks Lee 1. Igneous Rock Testing Lab: Drag the magnifying glass over the rock sample to get a close-up view. Unknown Rock Identification Lab Background: At this point you should have a good understanding of the rock cycle, the 3 main classifications of rocks (sedimentary, metamorphic, and igneous) and the forces/processes that change them. 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Hiking along a trail, you encounter what looks like an interesting mineral. �"K��ѥ*��Јt� �篜� �# �� �&ԂG��W��/W%͋$C-;el��M$��:�ڮ�����"闐 l�vP������S�"fٕIQ�{UJ��枠(�+�`]%� #����� �>�N��I��-8�Ϝ�Cę��'3��bzC��, ٫�b6��s(Z��15�qynn��l2TMS���#.�.F�U�75 ��!x���mQy��u�L�"�ڴ��-��hp�Uu[c�\e��d)��&�x�" ������+�1q�q7K�R��-eu��. Minerals 2. Igneous Rocks Lab Objective: To identify Igneous Rocks. (Does it have a lot of flat, shiny faces – may be tiny or small - that reflect light like … Rocks and Minerals 7 Name Date Class Lab Preview Directions: Answer these questions before you begin the Lab. Rocks. Rock Classification Answer Key Vocabulary: classify, extrusive igneous rock, foliation, fossil, igneous rock, intrusive igneous rock, metamorphic rock, mineral, sedimentary rock, strata, texture Prior Knowledge Questions (Do these BEFORE using the Gizmo.) You should also have a basic understanding of the characteristics used to classify rocks within these groups. 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