Tuesday, March 29, 2011

10 Fun facts about water

1) 70% of a Human Adult's body is made up of water
2) 70-75% of the earths surface is covered in Water
3) By the time a person feels thirsty, his or her body has lost over 1 percent of its total water amount.
4) The total amount of water on the earth is about 326 million cubic miles of water.
5) Less than 1% of the world’s fresh water (or about 0.007% of all water on earth) is readily accessible
    for direct human use
6) 3.9 trillion gallons of water are consumed in the United States per month
7) The human body is more than 60 percent water. Blood is 92 percent water, the brain and muscles are 75
    percent water, and bones are about 22 percent water
8) Three-quarters of the Earth's surface is covered with water, yet 98 percent is salt water and not fit for
    consumption. Less than one percent of all the water on Earth is freshwater available for human
   consumption.
9) In a 100-year period, a water molecule spends 98 years in the ocean, 20 months as ice, about 2 weeks in
    lakes and rivers, and less than a week in the atmosphere.
10) An acre of corn will give off 15,000 litres (4,000 gallons) of water per day in evaporation
Sources:
http://www.allaboutwater.org/water-facts.html (#1-4)
http://water.org/learn-about-the-water-crisis/facts/ (#5)
http://www.waterinfo.org/resources/water-facts (#6-8)
http://www.lenntech.com/water-trivia-facts.htm (#9-10)

Wednesday, March 2, 2011

Make-Up from Seminar.

So when Mr. Tony Rojas came to speak at Mercer I was unable to attend because I had to attend a class at Macon State.  As a makeup assignment I am writing about waste water treatment and how waste water is purified and cleaned so that it can be consumed by humans and other creatures.
The treatment plant that I am familiar with was very small scale, and very simple.  The raw sewage was piped into the plant and held in a tank.  The sewage was then pumped into the grinders where it was ground up and mixed in with a large amount of water, it is ground on a regular schedule for several hours and then pumped into a second holding tank where it is held and it allows for bacteria to eat the waste.  From there it is moved to another tank and chlorinated which is the final step in the process.  Samples are gathered on a regular schedule to be sent for tests.  The water is then considered clean and can be released into a free flowing creek.  This is a very primitive set up that I am slightly familiar with.  there are much more sophisticated and highly technological systems out there. This link can give you a more specific explanation of the process:
http://en.wikipedia.org/wiki/Sewage_treatment

Munsell Soil Chart

When Scientists work with dirt and they need to know what combinations of other soils are combined to make the dirt they are working with they use the Munsell Soil chart.  This chart helps them to identify what soils are present.  They use the color of the soil to identify hue and chroma. 
There are 12 soil orders found on Planet Earth.  This website describes them: http://soils.cals.uidaho.edu/soilorders/orders.htm
Another method of identifying soil is by using the soil texture dichotomous key.  This is a step by step flow chart that asks a series of questions and depending on the answer to those questions it will give a soil type or send you to another question in the chart that will help the user identify the soil.
This is an example of a Soil Texture Dichotomous Key: http://www.landhelp.info/documents/DichotomusKey6.pdf?PHPSESSID=f78117b04cbe1d39e82c3dc3cf85cf1e

The most prominent Soil type in GA is Inseptasol.  It is pictured below.



Here is a Map of the Soil in GA:

Tuesday, February 22, 2011

Extremophiles

There are creatures in the sea called Extremophiles they live along hydrothermal vents on the ocean floor.  This organism uses chemosynthesis through small bacteria that lives inside the tube worm in a symbiotic relationship.  The hydrothermic vents on the ocean floor release hydrogen sulfide and extremely hot water.  The bacteria that lives inside the tubeworm processes the Hydrogen sulfide and makes it useable for the tube worm.


Here is a picture of a tube worm.

Tomato Plant

So last tuesday morning the 15th of February, we were given a cup, seed, and soil.  We were told to grow the plant.  Since the weather had been fairly cold at night i kept it in my bathroom with the light on all the time.  I poked a hole in the bottom of the cup to allow excess water to drip so i couldnt drown the plant on accident.  I kept the soil moist, and when it was nice outside, I put it on our porch where it has stayed.  I have not seen any sprouts, however, it takes 7-10 days to germinate.  If i do not see any sign of life by thursday, I am going to assume the seed died.

Geology-Rocks

Igneous Rock:  Is a rock formed from crystaslline minerals solidified from molten magma from deep in the earths interior.  Examples are: basalt, rhyolite, andesite, lava, and granite.


Above is an example of Granite.



Above is a picture of Basalt

Metamorphic Rocks: are combinations of igneous and sedimentary rocks modified by heat, pressure and chemical reactions.  Examples are Schist, and quartzite.



Schist



Quartzite

Sedimentary Rocks are: Deposited material that remains in place long enough or is covered with enough material to compact into stone.  Examples are shale, sandstone breccia and conglomerates.



Shale



Sandstone

Tuesday, February 8, 2011

Geocaching

Geocaching is a fun activity where individuals find small objects and record there travels.  Some bigger caches have large things that the individual takes to another cache.  They follow the GPS to find these locations.  http://www.geocaching.com/  is the link to their site.

Geocaching helps the environment because individuals traverse the terrain and see all kinds of interesting things, and it makes them aware of the environment. 
When we did our geocaching we walked .25 miles around the library and Willett Science Center.  This is what we found on our quest around campus.

Point #1 Black Cylinder with Log
Point #2 Pill bottle with Black Eye Peas
Point#3 Red Cylinder with Log
Point #4 Hot sauce in Pill Bottle
Point #5 Soda tabs in Pill Bottle
Point #6 Chalk in Pill Bottle
Point #7 Battery in Pill Bottle
Point #8  Magnet with little car in Pill Bottle