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How to Identify Rocks

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Level 2 Rock Cycle

L2 Rock Cycle textbookL2 Rock Cycle

Learn how to identify rocks with our Level 2 Rock Cycle textbook. It includes sixteen lessons on the rock cycle. Lessons include Igneous Rocks, Pyroclastic Rocks, Clastic Rocks, Chemical Rocks, Foliated Rocks and Rock Cycle ID.  Each lesson contains 3-4 pages of written material about the rock cycle, a quiz and a kids science activity.

Myrna Martin introduces each lesson in the textbook on a video that can be purchased with our 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.

The kids science activities are fun and easy to do in this textbook. Science activities include Popcorn Cinder Cone, Locating Famous Volcanoes, T-Notes on Clastic Rocks, Creating a Playa and Pressing Layers.

IN SE L2 Rock Cycle Options
Level 2 Rock Cycle Textbooks

Student Edition eBook link
Level 2 Rock Cycle Textbook

Teacher Edition eBook link
Level 2 Rock Cycle Textbook

IN TE L2 Rock Cycle

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

How to identify rocks

You can learn how to identify rocks when you learn what makes each group unique. The rock cycle contains three major groups of rocks. Igneous rocks form when older rocks melt and collect in magma chambers. The molten rock erupts on the surface of the Earth during volcanic eruptions forming pyroclastic rocks. Magma that cools underground forms intrusive rocks with interlocking crystals.

Sedimentary and Metamorphic Rocks

Sedimentary rocks are the second major group in the rock cycle. Clastic, organic and chemical are the three major groups of sedimentary rocks. Metamorphic rocks are produced when crustal plates collide and minerals recrystallize into new rocks due to heat and pressure. Most metamorphic rocks form in mountainous areas like the Himalayan Mountains and in subduction zones that surround the Pacific Ocean.

Igneous rock classification

Learn how to identify rocks that formed during volcanic eruptions. Geologists classify igneous rocks by the minerals contained in the rocks after they cooled into solid rock. Basalt, andesite, dacite and rhyolite are the four major groups of igneous rocks. Basalt forms in the upper mantle and flows out on ocean floors as pillow basalt. It contains the lowest percentage of silica. Rhyolite contains at least 70% silica and is associated with super volcanic eruption. Andesite and dacite are created in subduction zones. Andesite contains less quartz minerals than dacite but more than basalt.

How sedimentary rocks form

Rock cycle facts about sedimentary rocks that form in three major environments. Clastic rocks form when deep layers of sediment turn into stone when enough heat and pressure is applied to lower layers. The two major types of organic sedimentary rocks are coal and limestone. Coal is plant material that has turned to rock. Coral reefs are formed when polyps extract calcite from water to form their limestone houses. Chemical limestone formations are found in playas and shallow oceans. Layers of minerals precipitate out of the supersaturated water to form rocks. Examples of these rocks are borax and salt.

What are metamorphic rocks?

Rock cycle facts about metamorphic rocks that form when continental plates collide or around the throats of volcanoes. The rocks under extreme heat and pressure recrystallize from igneous, sedimentary and other metamorphic rocks without melting. Foliated rocks from when shale turns to stone.

Marble is recrystallized limestone. Quartzite is a metamorphic rock that forms when sandstone is subjected heat and pressure that causes some of the sand particles to recrystallize between the individual sand grains. 

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