Curriculum Resources
Take learning to the next level and transform the way you teach with a vast library of ready-to-use, standards-aligned, adaptable curriculum resources. The resources listed below are either available with an Online Learning Subscription which allows you to instruct, assess and track student performance or as individual hands-on classroom resources which can be purchased. Choose from Multimedia Lessons, Curriculum Mastery Games, Flip Charts, Visual Learning Guides, Flash Cards, Vocabulary Cards, and Curriculum Modules available on our online store. PREMIUM ONLINE LEARNING SUBSCRIPTION OPTIONS
  • Select By Standard
    • General Science
    • Life Science / Biology
    • Human Body
    • Earth Science
    • Physical Science
    • Chemistry
    • Math
    • Language Arts
    • Social Studies

FREE Trial to
Online Learning
Shop for printed
Flip Charts

Igneous Rocks

Earth Science - Middle School

Igneous Rocks © Copyright NewPath Learning. All Rights Reserved. 94-4671 Visit for Online Learning Resources. magma lava Formation of Igneous Rock Igneous rocks form from cooling magma and lava. They are classified according to their mineral origin, texture and composition. The origin of igneous rocks is either intrusive or extrusive. Cooling magma below the Earth’s surface forms intrusive rocks, while erupting lava forms extrusive igneous rocks. Classifying Igneous Rocks The texture of an igneous rock is related to how long it takes to cool. Slow-cooling rock forms more crystals and is coarse-grained, while fast-cooling rock has fine grain. Intrusive Extrusive basalt pumice granite magma chamber magma obsidian Extrusive Intrusive Dark igneous rocks, referred to as mafic, have high concentrations of calcium, iron and magnesium. Light igneous rocks are described as felsic, and they have high concentrations of silica, aluminum and potassium. Basalt is a dark igneous rock with visible crystals. It is the most common extrusive rock, forming most of the ocean’s crust. Obsidian is a dark, glassy, extrusive igneous rock. It cools so quickly that it does not have visible crystals. When lava froths up with gases, a lightweight rock called pumice is formed. It is the only rock that can float on water. Granite is a light colored intrusive igneous rock with visible crystals. It is an abundant rock, found at the core of most mountains. lava quartz silica 50-70 % silica
Pause and Review Describe the composition, texture and origin of these igneous rocks. Igneous Rocks Color Classication Origin Example Mineral Concentrations obsidian basalt granite IGNEOUS ROCKS pumice © Copyright NewPath Learning. All Rights Reserved. 94-4671 Visit for Online Learning Resources.
© Copyright 2012-2020 NewPath Learning. All Rights Reserved. Privacy Notice * Terms of Use