WHAT TYPE OF ROCK DOES EACH NUMBER REPRESENT WHAT TYPE OF ROCK DOES EACH NUMBER REPRESENT?  USE THE PROCESSES LABELED ON THE ARROWS AS HELP Bellwork 

Objectives Students will be able to identify how the earth is affected by long- term and short- term geological cycles and the influence of man.  SPI 7.7.2 Label a diagram that depicts the three different rock types. SPI 7.7.3 Identify the major processes that drive the rock cycle.  Success Criteria: I can describe how metamorphic rock is formed.

Demonstration Tear your Starburst candy in half. Trade half of your candy with your shoulder partner. Push both halves together and wrap in the original wrapper. Apply heat and pressure from your hands for five minutes. Unwrap the candy and answer the following questions: What does the word “metamorphosis” mean? What part of this activity represented the heat that forms metamorphic rock? What part of this activity represented the pressure that forms metamorphic rock? How was the resulting candy at the end similar to metamorphic rock?

Metamorphic Rock

Metamorphic Rocks: Rocks that Change Metamorphic comes from the Greek words meta and morph. Meta means “change” and morph means “form”. We get “metamorphic” meaning “to change form.”

Metamorphic Rock: Origins of Metamorphic Rock Rocks can also go through a process called metamorphism, which means to ____________. ___________ _______ are rocks in which the structure, texture, or composition of the rocks have changed. All three types of rocks can go through metamorphism or can be changed by ______, _________, or a combination of both. change form Metamorphic rocks To insert this slide into your presentation Save this template as a presentation (.ppt file) on your computer. Open the presentation that will contain the image slide. On the Slides tab, place your insertion point after the slide that will precede the image slide. (Make sure you don't select a slide. Your insertion point should be between the slides.) On the Insert menu, click Slides from Files. In the Slide Finder dialog box, click the Find Presentation tab. Click Browse, locate and select the presentation that contains the image slide, and then click Open. In the Slides from Files dialog box, select the image slide. Select the Keep source formatting check box. If you do not select this check box, the copied slide will inherit the design of the slide that precedes it in the presentation. Click Insert. Click Close. heat pressure 6

Metamorphic Rock: Two Kinds of Metamorphism Contact metamorphism ___________ ________________occurs when magma intrudes or forces its way into existing rock. The heat of the magma bakes the surrounding rocks causing them to change. ___________ ________________ by contrast takes place over large areas deep within Earth’s crust. Regional metamorphism is associated with mountain building. To insert this slide into your presentation Save this template as a presentation (.ppt file) on your computer. Open the presentation that will contain the image slide. On the Slides tab, place your insertion point after the slide that will precede the image slide. (Make sure you don't select a slide. Your insertion point should be between the slides.) On the Insert menu, click Slides from Files. In the Slide Finder dialog box, click the Find Presentation tab. Click Browse, locate and select the presentation that contains the image slide, and then click Open. In the Slides from Files dialog box, select the image slide. Select the Keep source formatting check box. If you do not select this check box, the copied slide will inherit the design of the slide that precedes it in the presentation. Click Insert. Click Close. Regional metamorphism 7

Metamorphic Rock Textures of Metamorphic Rocks depend on composition of the rock and the amount of heat and pressure that is applied to the rock. __________ = mineral grains arranged in bands or planes (straight lines). Look at pg. 379. ____________ = mineral grains are not arranged in bands or planes Examples of metamorphic rocks: Foliated Nonfoliated To insert this slide into your presentation Save this template as a presentation (.ppt file) on your computer. Open the presentation that will contain the image slide. On the Slides tab, place your insertion point after the slide that will precede the image slide. (Make sure you don't select a slide. Your insertion point should be between the slides.) On the Insert menu, click Slides from Files. In the Slide Finder dialog box, click the Find Presentation tab. Click Browse, locate and select the presentation that contains the image slide, and then click Open. In the Slides from Files dialog box, select the image slide. Select the Keep source formatting check box. If you do not select this check box, the copied slide will inherit the design of the slide that precedes it in the presentation. Click Insert. Click Close. Gneiss Marble 8

Devils Tower, Wyoming METAMORPHIC

DEVIL'S TOWER, WYOMING

Devil's Tower Wyoming Read the article about Devil's Tower wyoming. Underline evidence of what type of rock can be found here. Underline evidence of how the rock types formed.

Exit Ticket Describe how metamorphic rock is formed.