What is Igneous Rocks

3rd - 6th Grade Textbook

L1 Igneous Rocks

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Learn what is igneous rocks in our Level 1 Igneous Rocks textbook. It includes facts about volcano rocks in each of the 12 lessons. These are some of the lesson titles included in the book: Where Igneous Rocks Form, Crystal Size, Tephra, Lava Rocks, Intrusive Rocks and Lava Tubes. Each lesson contains 2-3 pages of written material, a quiz and a kids science activity.

The textbooks are designed for upper elementary school students. Each textbook can be completed in one month by students who finish three lessons per week. A semester of Earth Science credit can be earned by students completing one of the Level 1 courses. Students wishing to earn a year of Earth Science credit should complete both Level 1 courses.

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Video Lessons

Myrna Martin introduces each lesson in the textbook on a video that can be purchased with our complete kits, packages and courses. Myrna covers not only the main points in the lesson she also includes extra information on the topic that is not contained in the written material.

Elementary Science Activities

The elementary science activities are fun and easy to do in this textbook. They also increase a student's understanding of the information taught in the lesson. Examples of the activities include: Building Crystals, Rock Trees, Mineral Concentration, Weighty Rocks and Granite Cookies. Each of these activities are designed to be created by students with materials commonly found around the home or in their neighborhood.


SE L1 Igneous Rocks Options

Student Edition ebook link
Level 1 Igneous Rocks textbook

Teacher Edition ebook link
Level 1 Igneous Rocks textbook

L1 Igneous Rocks teacher's books

Teacher’s Edition Textbooks

The teacher’s textbook is an exact copy of the student textbook. It includes the answers to the quizzes on each quiz page. A Teacher’s Notes page is located before each lesson with the following information

1. Lesson Content
2. Lesson Objectives
3. Activity information and materials needed
4. Vocabulary and definitions
5. Correlation with the National Science Standards


What is Igneous Rocks?

What is igneous rocks? Igneous rocks are one of the three major types of rocks found on the surface of the Earth. Igneous rocks form when magma (molten rock) cools either below the Earth’s surface or erupts onto the Earth’s surface during a volcanic eruption. Pyroclastic rock is a general term used to describe all rocks that form during a volcanic eruption. Intrusive rock is a general term used to describe all rock that cooled beneath the Earth’s surface.

What is Igneous Rocks Classifications

Igneous rocks are classified by their percentage of silica (quartz) and the location where they cooled into solid rock. What is igneous rocks formations that cool deep underground? These rocks are either plutonic or intrusive rocks. The size of the crystals in the rocks depends on how deep and how long they were underground before they were exposed by erosion. Lava flows produce lava rocks that cool when volcanoes erupt and lava flows out of a vent onto the Earth’s surface. Tephra are igneous rocks that were airborne for a period during a volcanic eruption.

Rock Forming Minerals

Basalt is a dark black rock that forms in the upper mantle. Basalt contains primarily iron rich minerals. Common minerals in basalt include olivine, augite, plagioclase feldspars, pyroxene and magnetite. Andesite is an intermediate in color igneous rock that is usually gray because the minerals are a mix of light and dark minerals. Major minerals in andesite include plagioclase, pyroxene and or hornblende. Rhyolite is the lightest colored igneous rock because it contains 70% or higher of silicon dioxide. Minerals in the rocks include quartz, sanidine, and plagioclase. Common accessory minerals in rhyolite include hornblende and biotite mica.


More Level 1 Earth Science Links

L1 Igneous Rocks

L1 Sedimentary Rocks

L1 Metamorphic Rocks

L1 Rock & Mineral Field Guide

Level 1 Course 1

Level 1 Textbooks

L1 Earth Science

L1 Rock Cycle

L1 Volcanoes

L1 Earthquakes

Level 1 Course 2

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