Rocks: Metamorphic

Contributor: Samantha Penna. Lesson ID: 11984

Stare at a rock for several days. Did you see it change? Well, don't really do that, but rocks can change over time when the conditions are right. Learn to identify those rocks as you hunt for them!

categories

Earth Science

subject
Science
learning style
Kinesthetic, Visual
personality style
Lion
Grade Level
Intermediate (3-5)
Lesson Type
Dig Deeper

Lesson Plan - Get It!

Audio:

Have you ever heard the phrase, "Solid as a rock"? Do you think rocks can change?

All throughout the Rocks series, you have learned about sedimentary and igneous rocks.

If you missed or need to review those Related Lessons, check them out in the right-hand sidebar.

  • Did you know these types of rocks can change into a new type of rock?

In this lesson, you will learn about how sedimentary and igneous rocks transform into metamorphic rock.

hot charcoal

Metamorphic rocks can form in many ways. Think about melting ice cream. When igneous and sedimentary rocks face extreme heat, they can be transformed into metamorphic rocks. They don't melt like ice cream does, though; instead, they become very hard and more compact! Heat from magma can change sedimentary rocks into metamorphic rocks like marble and quartzite! Below, you can see a picture of quartzite:

quartzite

Metamorphic rocks can be transformed by extreme pressure, too. When sedimentary and igneous rocks get buried far beneath the surface, the pressure from the weight of everything above these rocks causes the rocks to change. This will make the compacted rocks more dense. Slate and gneiss are examples of metamorphic rocks that are transformed by pressure. You can see a picture of gneiss below:

gneiss

You learned about two ways sedimentary and igneous rocks can be transformed into metamorphic rocks.

  • What are the two ways?

Share your answer with your parent or teacher. Take a look at all the rock pictures and find some things they have in common and some things that make them different.

After sharing, move on to the Got It? section to look at more types of metamorphic rocks.

Elephango's Philosophy

We help prepare learners for a future that cannot yet be defined. They must be ready for change, willing to learn and able to think critically. Elephango is designed to create lifelong learners who are ready for that rapidly changing future.