Marcadores by Nicol�s Madrigal Garr�n https://padlet.com/nicolasmadrigal3/Bookmarks Hecho con mucha chorra en-us 2022-05-12 17:28:18 UTC 2025-05-02 15:29:56 UTC hello@padlet.com Amber nicolasmadrigal3 https://padlet.com/nicolasmadrigal3/Bookmarks/wish/2181671992 amber, fossil tree resin that has achieved a stable state through loss of volatile constituents and chemical change after burial in the ground. Amber has been found throughout the world, but the largest and most significant deposits occur along the shores of the Baltic Sea in sands 40,000,000 to 60,000,000 years old.]]> 2022-05-12 17:33:58 UTC https://padlet.com/nicolasmadrigal3/Bookmarks/wish/2181671992 Cast Fossil nicolasmadrigal3 https://padlet.com/nicolasmadrigal3/Bookmarks/wish/2181678279 The creation of a cast or mold is a common form of indirect preservation. Most fossils do not contain actual body parts but are impressions, molds or casts of the original organism. Essentially, a mold fossil forms when the organic matter of the organism decomposes and leaves a cavity, or mold.]]> 2022-05-12 17:38:08 UTC https://padlet.com/nicolasmadrigal3/Bookmarks/wish/2181678279 Mold Fossil nicolasmadrigal3 https://padlet.com/nicolasmadrigal3/Bookmarks/wish/2181685770 What is a Mold Fossil ?
A Mold Fossil is a fossilised impression made in the substrate, a negative image of the organism.

How Are Mold Fossils Formed ?
Mold fossils form after hard parts have been buried in mud, clay, or other material that turns to stone. Later, water dissolves the buried hard part, leaving only an impression or mold of the original. The content can get compressed into a hard copy of what it was enclosed in.





]]> 2022-05-12 17:42:43 UTC https://padlet.com/nicolasmadrigal3/Bookmarks/wish/2181685770 Oil Fossils? nicolasmadrigal3 https://padlet.com/nicolasmadrigal3/Bookmarks/wish/2181690524 We call crude oil and petroleum fossil fuels because they are mixtures of hydrocarbons that formed from the remains of animals and plants (diatoms) that lived millions of years ago in a marine environment before the existence of dinosaurs.


]]> 2022-05-12 17:45:52 UTC https://padlet.com/nicolasmadrigal3/Bookmarks/wish/2181690524 Museum Fossils? nicolasmadrigal3 https://padlet.com/nicolasmadrigal3/Bookmarks/wish/2181693549 Most of the prehistoric skeletons you see in museums are lightweight models built by attaching replicas of the real fossil bones to steel frames. The model skeletons show the bones in good condition, with no missing or broken parts. Clues found on the real fossil bones help scientists put together these models.


]]> 2022-05-12 17:47:45 UTC https://padlet.com/nicolasmadrigal3/Bookmarks/wish/2181693549 Fossils nicolasmadrigal3 https://padlet.com/nicolasmadrigal3/Bookmarks/wish/2181697888 There are some types of fossils like "Cast Fossils," "Mold Fossils, etc]]> 2022-05-12 17:50:46 UTC https://padlet.com/nicolasmadrigal3/Bookmarks/wish/2181697888