GEOLOGY

Detailed explanation-1: -Fossils form in five ways: preservation of original remains, permineralization, molds and casts, replacement, and compression. Rock formations with exceptional fossils are called very important for scientists to study. They allow us to see information about organisms that we may not otherwise ever know.

Detailed explanation-2: -Freezing-Some fossils are preserved in ice. As long as the ice doesn’t melt the fossil may be preserved for thousands of years. Large fossils such as the wooly mammoth have been discovered in the glaciers of the Arctic. Mummification-In really dry areas a fossil may be formed through mummification.

Detailed explanation-3: -cast: A mold filled with sediment and hardened to create a replica of the original fossil. mold: An impression made in sediments by the hard parts of an organism. permineralization: Fossilization in which minerals in water deposit into empty spaces in an organism.

Detailed explanation-4: -Amber fossils are made when insects or other very small animals become trapped in thick tree sap. The sap hardens over time to become amber, and the body of the animal is preserved intact.