Transcript Enceladus - SCIENTIST CINDY

The Chemistry of LIFE (inorganic chemistry)
By Scientist Cindy www.scientistcindy.com
What You Should Learn
•
Why are living organisms “carbon-based”?
•
Why do we need water to create life as we know it on this planet?
•
What are the 4 major elements found in the body?
•
Know how the position of an element on the periodic table gives us the
bonding properties of that atom..
◦
In an atom, the number of protons is equal to the number of electrons.
◦
The number of valence electrons dictates if / how that atom can bond.
YOUR MISSION IS TO…
•
THE LARGEST MOON OF SATURN
This is TITAN
• There
could be
droplets of
water-ammonia
mixtures rising
inside Titan's oily
lakes.
By Titan (L): NASA/JPL/U. of Ariz./LPGNantesEarth (R): NASA/GSFC/M. Schoeberl http://www.nasa.gov/content/goddard/nasa-identifies-ice-cloud-above-cruising-altitude-on-titan/ (image link), Public
Domain, https://commons.wikimedia.org/w/index.php?curid=36515493
•
THE LARGEST MOON OF SATURN
This is TITAN
• Titan
resembles
Earth perhaps
more closely than
any other celestial
body in the solar
system.
But instead of
water oceans, it
has hydrocarbon
lakes.
By Titan (L): NASA/JPL/U. of Ariz./LPGNantesEarth (R): NASA/GSFC/M. Schoeberl http://www.nasa.gov/content/goddard/nasa-identifies-ice-cloud-above-cruising-altitude-on-titan/ (image link), Public
Domain, https://commons.wikimedia.org/w/index.php?curid=36515493
•
THE LARGEST MOON OF SATURN
This is TITAN
But instead of
water oceans, it
has hydrocarbon
lakes.
By Titan (L): NASA/JPL/U. of Ariz./LPGNantesEarth (R): NASA/GSFC/M. Schoeberl http://www.nasa.gov/content/goddard/nasa-identifies-ice-cloud-above-cruisingaltitude-on-titan/ (image link), Public Domain,
https://commons.wikimedia.org/w/index.php?curid=36515493
•
Surface
temperature: minus
290 Fahrenheit
(minus 179 degrees
Celsius), which
makes water as
hard as rocks and
allows methane to
be found in its
liquid form
•
THE LARGEST MOON OF SATURN
This is TITAN
This is a Photo
A hydrocarbon lake
On TITAN.
By Titan (L): NASA/JPL/U. of Ariz./LPGNantesEarth (R): NASA/GSFC/M. Schoeberl http://www.nasa.gov/content/goddard/nasa-identifies-ice-cloud-above-cruisingaltitude-on-titan/ (image link), Public Domain,
https://commons.wikimedia.org/w/index.php?curid=36515493
And MARTIANS??
• Scientists
don't have any
evidence yet that life ever
existed on Mars, but they do
know that Mars has water ice
covering its poles and that
Martian surface soil contains 2
percent water by weight.
And MARTIANS??
• Soil
samples (studied by NASA's Mars
rover) have revealed that Mars
would have at least been capable
of supporting microbial life
billions of years ago, when the
planet was much wetter and
warmer than it is today.
Europa
•
Europa might be the
most promising
candidate for life.
•
It is a moon of Jupiter.
•
It is thought to harbor
a huge ocean of liquid
water beneath its
thick icy crust.
Enceladus
•
Enceladus is the
sixth-largest moon of
Saturn. It is
approximately 500
kilometers in
diameter, about a
tenth of that of
Saturn's largest
moon, Titan.
Enceladus
• Enceladus
has a
formidable frozen
shell covering a
deep subsurface
ocean, which
could cover an
area at least as
big as Lake
Superior
Enceladus
• NASA's
Cassini spacecraft has
spotted 101 geysers of water
vapor and ice erupting from
fractures near Enceladus' south
pole