Performance task- The ecolumn

Final Observations and Disassembly of E-Column

DAY 3May 10-11

Type of Chamber Measure/Count Other Instructions

Terrestrial Chamber

1. Dry Mass of filter material and soil

2. Dry Mass of plants

1. Measuring Dry Mass. Place materials in plastic bag. Let it dry. Measure mass.

2. Calculate change in mass. 3. Place materials in proper bins.

Aquatic1. Volume of water2. Mass of aquatic plant3. Number of organisms/fish

1. Place measured water, aquatic plants in bucket/basin.2. Fish to be released in the pond.3. Dead snail goes with decomposition

material

Decomposition1. Fruit peeling/paper/plastic

* If materials cannot be recovered, then observe for signs of decomposition (qualitative).

1. Measurements done outside of classroom. 2. All materials to be weighed need to

be in sealed plastic bags. 3. Return decomposition material to

our big decomp. bin (plaza level).

Note: You are responsible for completing the tasks for your assigned chamber. Wear safety gear (apron, masks, safety glasses, gloves).

Summary of Observations Interpretation

Relate to Law of Ecology

What data can you graph?

Growth of plant (TC) pH, temp, water (AC) Temp (DC)

A. Guidelines for Video Journal

1. Intro:

State the aim/purpose (question)Describe the set-up (germination, #of seeds, mass measurements, filters, chambers, identify biotic & abiotic factors)

2. Log & Analysis

Summary of observations (daily/weekly/highlights)Connection of observations to 4 Laws of EcologyData table & graph (connections)

Total time: 5 – 7 minutes

B: Guidelines for the Individual Diary•Data tables/graph (growth rate, pH, masses [soil, water volume, aquatic plant, snail/fish], temperature)•Labeled diagram of the e-column•Predictions/Questions/Curiousities

Timeline (May 14-18)

DAY 1- Analysis of data Making the video

DAY 2- Completing the video

DAY 3- Submit: Diary and Video Journal

Word Bank:

4 Laws of Ecology Biotic

Habitat Abiotic

Autotrophs/heterotrophs Closed system

Decomposers/detritivores Photosynthesis

Carrying capacity Respiration

Transpiration Water/carbon cycle