How Do Igneous Rocks Form?
ES0603  Four Igneous Rocks

All four of these images show igneous rocks—each one formed as melted rock cooled and solidified. Examine the rocks and consider their similarities and differences.

1. Describe the four igneous rocks shown in the images.

 
Sample 1
 
Sample 2
 
Sample 3
 
Sample 4
Matthew Nyman, TERC

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