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sophiehernandez

Stromatolites - 10 views

www.fossilmuseum.net/...Stromatolites.htm

fossils Science

shared by sophiehernandez on 26 Nov 12 - Cached
  • christinemb on 26 Nov 12
     
    This is a website about stromatolites.
  • ...11 more comments...
  • juliadellasalle on 26 Nov 12
     
    Stromatolites are the Earth's oldest fossils. Some stromatolites are from 3.5 MYA. Stromatolites are all over the world.
  • Kali Soud on 26 Nov 12
     
    This was really cool because the pictures really made you think.
  • The duct tape queen Mathilde wolf on 27 Nov 12
     
    They old things are really cool.
  • Ben Browner on 27 Nov 12
     
    The pictures were very interesting and stromatolites are the oldest fossils. They are about 3 million years old
  • macycummings on 27 Nov 12
     
    I can't believe the world may have depended on stromatolites.
  • cj5600 on 27 Nov 12
     
    I did not know that they are the oldest fossils on Earth. If scientists disagree about the definition, then is there more information to be found about these fossil?
  • sophiarase on 27 Nov 12
     
    I did not know that stromatolites were the oldest fossil on earth. And some scientists think that they were formed from green and blue algae but that is just one theory. This is a helpful interesting website that will help with our geology unit.
  • christophershay on 27 Nov 12
     
    This site taught me that the stromatolites are a rather unknown species that's formation is not too well known.
  • sophiarase on 27 Nov 12
     
    i thoght it was very interesting that the plates are always moving but it takes us millions of years to see progress.
  • jmacdonald11 on 03 Dec 12
     
    This is a really good website about stromatolites and retakes to what we are learning.
  • angelaeast on 03 Dec 12
     
    Great find Christine. this really relates to what we have been learning in science class. Some of the facts that i had learned while reading the sections, even though I had not read all of them because, I was pressed on time, that stromatolites are considered one of the earths oldest fossils besides phylogenetic determination of conserved nucleic acid sequences. Stromatolites are basically considered portals to the knowledge of earths past life, into the deep time of the earths existence, the evolution of different species that are thriving in the modern times. I didn't know that scientist often disagreed on how to classify stromatolites. Some believe that it is a laminated rock that is formed by the growth of blue or green algae.
  • sophiehernandez on 03 Dec 12
     
    This is a good website on stromatolites and the history behind them.
  • evamunroehrlich on 03 Dec 12
     
    This is a great website on stromatolites and its what we learned. Great job!
Gatlin Mark

Climate Change and Colorado's Future - 1 views

learnmoreaboutclimate.colorado.edu

colorado climate local water conservation ecology population

shared by Gatlin Mark on 20 Mar 13 - Cached
  • Gatlin Mark on 20 Mar 13
     
    How global warming will affect us locally. From rain and snow amounts, to agriculture and living in the city. From the University of Colorado, Boulder
jwshwayder

Cool acts on fireworks - 0 views

www.nbcnews.com/...entific-flash-behind-fireworks

science fireworks fire

shared by jwshwayder on 08 Apr 13 - No Cached
  • jwshwayder on 08 Apr 13
     
    This is a really cool sight about fireworks. It goes into some detail about how with a different sized grain of the chemical it can make the last longer once exploded to create a better visual effect. It also explains how different fireworks can create different colors thermodynamics (natures way of conserving energy). To get a sound out of your fireworks scientists are putting a basic fuel in one end while the other is open and when it is lighted it rushes off to the open end the carbon dioxide gives off a whistling sound. One can also make really cool shapes and words in the sky with fireworks. Its all in the way one packs the basic fuel and the colorant pellets. If you like chemistry this is a really cool sight to visit.
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