Worksheets and No Prep Teaching Resources Reading Comprehension Worksheets Rocks and Minerals

Plutons Rocks and Minerals

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Plutons
Print Plutons Reading Comprehension with Sixth Grade Work

Print Plutons Reading Comprehension

Reading Level

	edHelper's suggested reading level:	high interest, readability grades 6 to 7
	Flesch-Kincaid grade level:	6.27

Vocabulary

	challenging words:		batholith, batholiths, coarse-grained, dike, gabbro, laccolith, laccoliths, pluton, viscous, intrusive, topography, igneous, intrusion, mushroom-shaped, plutons, sedimentary
	content words:		Sierra Nevada Mountains, United States, Black Hills, South Dakota

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Plutons By Patti Hutchison

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¹     What are plutons? No, they are not people from Pluto. Can you guess what they are?
 
²     Plutons are formed by intrusive activity below the Earth's surface. Restless magma flows up toward the Earth's surface. It forces its way into the overlying rock.
 
³     As the magma cools, minerals form. Over time, the minerals combine to form rock bodies. These intrusive rock bodies are called plutons.
 
⁴     There are several kinds of plutons. They are classified by their size and shape. They are also classified by whether they cut across or run parallel to the rock layers they intrude.
 
⁵     Batholiths are the largest plutons. They form over millions of years. Batholiths have an irregular shape. They are made of coarse-grained igneous rocks such as granite and gabbro.

Paragraphs 6 to 12:
For the complete story with questions: click here for printable

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