Rocks & the Rock Cycle
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| This Cycle Rocks! |
The Rock Cycle is a group of changes. Igneous rock can change into sedimentary rock or into metamorphic rock. Sedimentary rock can change into metamorphic rock or into igneous rock. Metamorphic rock can change into igneous or sedimentary rock.
Igneous rock forms when magma cools and makes crystals. Magma is a hot liquid made of melted minerals. The minerals can form crystals when they cool. Igneous rock can form underground, where the magma cools slowly. Or, igneous rock can form above ground, where the magma cools quickly.
ASSIGNMENT:
1. Watch each of the following videos. Write a summary of each of them, being sure to discuss the primary topic of each one. Include and highlight the most important vocabulary in the video.
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