Grade 1 - A History Of The Earth

TThe History of the Earth: Supplemental Guide 6A | The Three Types of Rocks 113

Metamorphic

 Show image 6A-15: Limestone to marble

1. The third type of rock is metamorphic rock.


2. Say metamorphic with me three times.


3. Metamorphic rock is a type of rock that forms when igneous
   or sedimentary rocks undergo intense heat and pressure and
   change into new rocks.


4. Many statues are made from marble, a kind of metamorphic
   rock. [Point to the Lincoln Memorial.]
   Jose explained to Arias that the word metamorphic came from
   the Greek word for transformation, or change.

 Show image 6A-16

5. Name the different types of rocks with me: igneous,
   sedimentary, and metamorphic. Tell your partner how these
   three rocks look different.

Purpose for Listening

Tell students to listen carefully to learn about the three types of

rocks and how they were formed.