for a drop of clear water the ionian sea. the ionian sea(from greek iónion pélagos) is the part of...
TRANSCRIPT
FOR A DROP OF CLEAR WATER
THE IONIAN SEA
THE IONIAN SEA• The Ionian sea(from Greek Iónion Pélagos) is the part of the Mediterranean sea which stands
between the Eastern Italian coasts of Apulia, Basilicata , Calabria, Eastern Sicily to the West and Albania and Western Greece to the East.
• It stands from the Otranto canal in the North, while its Souther limit is uncertain because it becomes blue water or open sea.
• It is the deepest part of the Mediterranean sea: 4000m in a lot of parts and over 5000 , Calypso Deep, in South-West part.
• Ther are a very few islands in the Italian part, while a lot of quite big islands are in the Greek part and they are called Ionian islands, such as Corfu, Zakynthos, Kephalonia, Ithaca Kephalonia.
BASILICATA IONIAN COAST
Our Ionian coast is about 70 km long and three rivers flow into the Ionian sea. Now the shore is sandy and low with the Mediterranean bush, pinewood and the swamp wood.
THE MAIN SEA ELEMENTSNutrienti Forme
Nitrogen Nitrites, nitrate, ammonia
Phosphorous Phosfphates
Silicon Silicates
Iodine and Bromine
Iron, copper and other heavy metals
Sali % sul totale dei Sali
Sodium Chloride NaCl
77,8
Magnesium chloride MgCl2
10,9
Magnesium Sulphate MgSO4
4,7
Calcium Sulphate CaSO4
3,0
Potassium Sulphate K2SO4
2,5
Calcium Bicarbonate CaHCO3
0,3
Magnesium Bromide MgBr2
0,2
Others 0,6
Gas (from atmosphere)
Nitrogen
Oxygen
Carbon dioxide
OUR SEA SAMPLE TAKING On April 7 th Luca took the sea sample
OUR ANALYS IN OUR LABOn April 8 th we started our analysis
OUR SET FOR SEA WATER ANALYSIS
First of all we measure the sea water temperature :18° C
Then we teste the water hardness using French degrees: 15°, quite hard.
The PH acidity of the water is :7,6
So the total hardness is between 9-11, an average value
Next we test the Magnesiun and the Calcium together: 1700 mg/l
Than we measure the quantity of Calcium: 25g/500mg and so we calculate the value of magnesium: 1200mg/l , which are good values!
Now we test Ammonium: < 0.05 mg/l which is below the average value of <0.25
How interesting it is to observe the change of the colours!
A drop from the little bottle can change the colour!
Now we test the Phosphate
Here we go with the tranformation …the result is: <0.02 mg/lExtraordinary!
The NITRITE: < 0.025 mg/l
It is very important to shake the sample for the exact number of minutes!
The Nitrate : <0.5 ml/l
AMMONIUM: < 005 What a magnificent result!
This is the result of the Silicic acid : < 0.8 mg/l
What a magnificent value! In our sea Copper is < 0.1mg/l
…and before leaving our lab, we have to clean everything! A special thank to Ms Angela Varasano our Science teacher!
LICEO SCIENTIFICO “ENRICO FERMI” POLICORO-ITALIA