In this activity, you will watch a video. Then work with your pair and open a Word document to write a paragraph about what you learned from the video. It is about sedimentary rocks formation.
http://www.youtube.com/watch?v=mQGMgR_5jvc
Geologic Time Scale
A geologic time scale divides Earth’s history into four time periods. The earliest period is at the bottom. Newer periods are at the top. The scale’s order is like layers of sedimentary rock. The layers with the oldest fossils are at the bottom. Newer layers of rock form on top. The oldest period, dated more than 2,500 million years ago is the Pre-Cambrian period, the Paleozoic period dates back 570 -290 million years ago. Then the Mesozoic period which took place 248 - 138 million years ago. During the mesozoic period the dinosaurs appeared on the planet. Finally, the Cenozoic period took from 63 to 2 million years ago. At the beginning of this period dinosaurs disappeared and during the last part, the modern humans were born. Visit the following National Geographic page where you will find a Prehistoric Time line, pictures and interesting information is found:
http://science.nationalgeographic.com/science/prehistoric-world/prehistoric-time-line/
On your Word document, write three important facts you find about each period. Now, watch a song video about Geological periods:
http://www.youtube.com/watch?v=SY3MZ_wNFW8
Fossil Formation
Visit the following page with interesting information about how fossils form. In your Word document list the steps for fossil formation:
Watch the following video that tells about fossils and fossil formation:
In your word document, list 10 important things you learnt from watching this video.
Rock Cycle
Old rocks are always changing into new rocks. This process is called the rock cycle.
Heat, pressure, weathering, and erosion are some forces of this cycle. Not all rocks
complete the cycle. Some rocks may only go through part of the cycle.
Heat, pressure, weathering, and erosion are some forces of this cycle. Not all rocks
complete the cycle. Some rocks may only go through part of the cycle.
Watch these videos to learn more about this process:
You may visit the following web page with more information about the rock cycle:
At the following page, there is an interactive diagram of the cycle with animation. Go through it, then try to complete the cycle yourself at:
Finally, watch this video and take a look at an amazing place where giant crystals formed:
I hope you enjoy your tour through the world of rocks and minerals!
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