Tag Archives: earth science

Day 63: The Carbon Cycle (Part 1)

The image below represents the carbon cycle,  one of my favorite cycles. Carbon is one of the elements responsible for life – it is so important for life that often compounds containing carbon are called “organic”.  This is how carbon transits through the  geosphere, the hydrosphere, and the atmosphere.

CCdiagramWEB.jpg

Source: University of New Hampshire, 2008

The scary part about the carbon cycle is how much we, humans and living organisms, are actually affecting the carbon cycle. We’re actually transforming the roles some of the spheres play in the carbon cycle.  To help you understand how carbon is transiting through these spheres and what role we play in it, here are some questions to think about.

How much is the atmosphere absorbing?

How much is the atmosphere emitting?

How much is the ocean absorbing?

How much is the ocean emitting?

How much is the geosphere absorbing?

How much is the geosphere emitting?

Which sphere(s) act as a carbon sink (absorbing more than it emits)?

Which sphere(s) act as a carbon source (emitting more than it absorbs)?

With these questions, you can see for yourself how the natural flow of carbon circles and how we impact this cycle. If you didn’t get it, stay tuned for Part 2!

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Day 32: A little bit of star wonder – understanding parallax

How do scientists know that stars are so far, far away? Here’s a little bit of wonder explained and a lit of bit of cool science appreciation – thank you scientists for coming up with theories and information that knocks our socks off! Continue reading

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Day 27: Have a telescope party!

pia00405-orig

Source: NASA. “NASA Galileo spacecraft took this image of Earth moon on December 7, 1992 on its way to explore the Jupiter system in 1995-97. The distinct bright ray crater at the bottom of the image is the Tycho impact basin.” http://photojournal.jpl.nasa.gov/catalog/PIA00405

For this action on saving the world, you will need:

  • A telescope
  • A front-yard with at least a partial view of the sky (even a light-polluted sky will work)
  • A clear night
  • Curious neighbors

Continue reading

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