PBS
A Brief History of Geologic Time
By looking at the layers beneath our feet, geologists have been able to identify and describe crucial episodes in life's history. These key events frame the chapters in the story of life on earth and the system we use to bind all these...
Curated Video
Fossils: A Journey Through Earth's Past
Fossils are preserved specimens that provide us with information about plants and animals of the past. They contribute to our understanding of evolution and the history of life on Earth. Learn about different types of fossils and how...
Visual Learning Systems
The Law of Superposition and Index Fossils
In this video, the concept of the law of superposition is explained, which states that younger rock layers are found on top of older rock layers in sedimentary rocks. Additionally, the video introduces the concept of index fossils, which...