Curated Video
The Three Types of Rocks
Dr. Forrester explains the three different classifications of rocks: igneous, sedimentary, and metamorphic.
Visual Learning Systems
Igneous and Metamorphic Rocks: Summing Up
This video explains how heat, pressure and chemical reactions may transform one type of rock into another. The formation and classification of metamorphic and igneous rocks is highlighted. Other terminology includes: extrusive rock,...
Visual Learning Systems
Igneous and Metamorphic Rocks: Foliated and Nonfoliated Metamorphic Rocks
This video explains how heat, pressure and chemical reactions may transform one type of rock into another. The formation and classification of metamorphic and igneous rocks is highlighted. Other terminology includes: extrusive rock,...
Getty Images
Corals, track over coral to ridge, Southern Visayas, Philippines
Corals, track over coral to ridge, Southern Visayas, Philippines