Making a Model of
a Closed Ecosystem

 

Getting Hooked on Ecojars

Table 5: Conclusions and Analysis of the Ecojar

Complete the chart below.

  VARIABLE
MEASURED
upwards arrow INCREASE
downwards arrow DECREASE
bidirectional arrow STAYED THE SAME OR
zig zag arrow FLUCTUATED UP AND DOWN
DESCRIBE AND ANALYZE THE IMPACT THE VARIABLE HAS ON THE CLOSED ECOSYSTEM IN THE ECOJAR
a Temperature (°C)    
b Ammonia, (NH3), ppm    
c Nitrate (NO31-), ppm    
d Nitrite (NO2 1-),
ppm		    
e Total Hardness,
ppm		    
f Total Alkalinity,
ppm		    
g The pH value    
h Snails    
i Guppies    
j Plant life    
k Colour of water