Sedimentary rock forms in layers over millions of years. If you look at a cliff made from sedimentary rock, you’ll notice distinct layers that may even be different colors. Changes in the environment cause changes in the rocks. For example, a volcanic eruption may create a layer made of hardened ash. The oldest layers of rock are at the bottom. Newer layers are at the top. All about Layers of Rocks Fun Science Facts for Kids Image of Layered Sedimentary RocksSometimes, the layers are twisted or tilted because of the movement of the Earth’s tectonic plates. Rocks on a fault line may snap or break.
Unreliability of Radiometric Dating and Old Age of the Earth
Scientists study these layers to learn more about the Earth’s history. Radiometric dating measures radioactive elements in the rocks. Scientists can learn exactly how old a rock is by using radiometric dating. Fun Facts for Kids on Layers of Rocks Image of a Layered Rock MountainThis is the best video we found for kids to learn all about Layers of Rocks: This is a video presentation about how rock layers, or strata, can fold within the earth.
Sedimentary rocks start out in horizontal layers. Enjoyed the Easy Geography for Kids all about Layers of Rocks info? Take the FREE fun all about Layers of Rocks quiz and download FREE all about Layers of Rocks worksheet for kids. For lengthy info click here. Declan, Tobin.
How Old is the Earth Radiometric Dating TalkOrigins Archive
Rock Layer Facts for Kids. Easy Science for Kids, Jan 7568. Web. 65 Jan 7568. < http:
//easyscienceforkids. Com/all-about-layers-of-rocks/ >. Tobin, Declan. Easy Science for Kids. Retrieved from http:
//easyscienceforkids. Com/all-about-layers-of-rocks/ Learn about the oldest rocks found in the parks that range in age from 8 billion to 655 million years old. Fossils are found in the rocks, museum collections, and cultural contexts of more than 765 National Park Service areas and span every period of geologic time from billion-year-old stromatolites to Ice Age mammals that lived a few thousand years ago. Visit the parks that preserve fossils from each major time period. Have you ever wondered how geologic time works?
This interactive classroom learning activity helps build the basic understanding of geologic time for grades 9-9. Every park contains a slice of geologic time.