Winogradsky column

Hello friends,

Winogradsky column by C. Theochari and M. Zouroufidis

• Our samples were taken by Anauros (local beach of Volos, Greece) during our university field trip. We already had prepared the necessary tools:
•    1One plastic bottle of 1.5l

2  One plastic bottle of 0.5l

3 One egg

4  Some small paper pieces

We went there and we followed specific steps: 

Gather sea sediment  and make a hole in the middle

Put the paper and the egg inside, make a mixture

Put it inside the bottle (2/3 parts of the big bottle)

Finally, filled up with water.

Then we left it in a dark  place and took some photos during the days of the experiment.

                        Day 1.At the first day of our experiment we placed our column in a dark spot and sealed

15-20 th day:We noticed that the 3/4 of sediment became darker from the rest.

After 1 and a half month: Finally We have noticed that all the column has become black due to the presence of Fes in the sediment.