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5 kwi 2021 · Did you know that petrified rock is actually a fossil? In this simple STEM lesson, we are going to learn a bit about petrified rock and make a petrified sponge!
This video lesson explains how fossils found in rock layers can provide evidence for changes in a landscape over time. (NGSS 4-ESS1-1: Identify evidence from patterns in rock formations...
Scientists study the facts about each fossil they find to find out clues about where they animal may have lived, what they ate, how old they were and how they died. There are two main types of fossils including mold fossils and petrified fossils.
There are two types of fossils, Petrified and Mold. Dinosaur fossils are examples of petrified fossil. The largest dinosaur fossil ever found is 110 foot long that is called as Argentinosaurus.
Petrified fossils result from permineralization, the replacement of once-living matter by minerals. Solutions containing silicates, carbonates, iron or other minerals seep into the gaps and spaces between the cells, first encasing the cells and eventually replacing the cells themselves.
Searching locally for fossils and artefacts with kids can be an epic journey – and inspire curiosity and exploration. Here’s what you need to know to get started on a junior fossil hunting expedition, plus five extra activities for kids who love ancient life….
Petrification can preserve hard and soft parts and slowly replaces organic material with silica, calcite or pyrite, forming a rock-like fossil. Wood is often found petrified. Some organisms are embedded in Amber (a hardened form of tree sap). This usually preserved insects or pieces of plants.
