12/1/10

Introduction

Through this experiment we are trying to discover how abiotic and biotic work together and function for three different sections through time. We're trying to learn how certain things in an ecosystem can effect other things. We didn't use a hypothesis for this experiment because the ecosystem kind of controlles how everything turns out by itself once we have it all set up and put by the window and there's smaller things that we can't exactly study and observe multiple times like how the worms are doing in the middle section. We think the growth of grass and the plant in the aquatic system would be much greater and it would probably be more of a mess by the end of the project. 

Procedure

a.) Constructing the ecocolumn
 1.Gather materials
     2.Cut soda bottles so that there are 3 sections that are the top of the bottles one section that is from the bottom and 3 that are from the middle
     3.place the bottles togeather so that the bottom part is on the bottom the middle sections fit togeather       above that and the top sections fit inside
     4.poke holes into the bottle cap
     5.put filters in the bottle caps
     6.put sand into the lowest section with gravel above it
     7. plant algea into the lowest layer
     8.fill the lowest layer with water
     9.cut a small square at the top of the lowest layer
    10.add decomposition to the second layer
    11.add soil and grass seed to the third layer
   12.tape the layers togeather
   13. test the ecocolumn for turbidity, dissolved oxygen, nitrates, tempurature, and coliform bacteria every two weeks
   14. record data
   15. add 2 cups of water every 2 weeks

Purpose

The purpose of the Eco-column project is to create three ecosystems. The terrestrial, decomposition and aquatic ecosystems. And  to keep them in one column so that we can monitor the abiotic and biotic factors of all three. So that two comparisons can be made: a comparison to each other and a comparison to those ecosystems outside the classroom. 
   

Data

Data for experiments:


September 23, 2010
DO-3.5 mg/L
Nitrates-0.6 mg/L
Temp.-19.7 degreese Celsius
pH-7.43
Turbidity-0

October 7, 2010
DO-4.5 mg/L
Nitrates-0.4 mg/L
Turbidity-0
pH-7.56
Temp.-20.8 Degreese celcius

October 18, 2010
pH-8.27
Temp.-22.3 degrees celcius
Nitrates-1.8 mg/L
DO-6.1 mg/L

December 7, 2010
Temp.-19.7 degrees celcius
pH-7.6
Nitrates-36.7 mg/L
DO-6.7 mg/L

January 6, 2011
pH-7.48
temp.-20.1 degrees celsius
DO-10.3 mg/L
Nitrates-36.96 mg/L
Turbidity-11.5

March 23, 2011
Ph- 8.20
dissolved oxygen- 8.9
Turbidity-11.5
Nirates-15
Temperature-21.2

Materials

Our materials are:
  • Snail
  • Gravel
  • Grass
  • Water
  • Compost
  • Elodea
  • Sand
  • Radish
  • Blood worms