How does the acidity of lake water affect the hardness of Zebra mussel shells?
It is observed that the Zebra mussels from the lake with pH 6.5 had softer shells and the mussels from the lake with pH 7.5 had the hardest shells.
|pH of lake water||6.5 (acidic)||7.0 (neutral)||7.5 (alkaline)|
|Hardness of shell (kg)||6.85||9.8||10.95|
The graph below represents the results of our science project experiment:
Basic safety requirements