Metamorphic+Rocks

Metamorphic Rocks
Metamorphic rocks record how **temperature** and**pressure** affected an area when it was forming. The rocks provide clues to their transformation into a metamorphic rocks. Metamorphic rocks are best identified when looking at the rock as you see them in nature. You can clearly see the **deformation** and features that are characteristic of an entire area. Metamorphic rocks were once sedimentary, igneous, or another metamorphic rock. These rocks are physically deformed and chemically changed due to different temperatures and pressures. The elements in the minerals can actually "move" to form new minerals. The rock does not melt, or else it would be considered an igneous rock. A rock looks different after it has been **metamorphosed**. The rocks texture and overall appearance changes also. It now has a squished look! []





Have students write down the types of rocks that they hear through this song. []
 * Kids Rock Song:**

[] 27sec grab of how metamorphic rocks are formed

[] 5:42 (min/sec) This is a more substantial look at metamorphic rocks intruding into sedimentary rock (extension work) but helps to explain sill inside sedimentary rocks

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I wanna Rock: Video by Jacob & Aaron 1:48 []

Metamorphic rocks are formed when heat and pressure change existing sedimentary or igneous rocks so that their form or their crystals are changed.

Metamorphic rocks sometimes form as a sill or an intrusion into sedimentary rock formations.



Feldspar comes with many characteristics and the following