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Observation

The results show that the water sample obtained near the boatyard contained the highest amount of copper, lead and zinc, followed by the water sample from the marina area.
 

Heavy metal in water Metal content in water samples (ppm)
  Boatyard Marina Beach Tap water
Copper (ppm) 39.5 5.5 1.5 0.5
Lead (ppm) 2.5 1.5 0.5 0.01
Zinc (ppm) 5 3.5 2.5 2

The above results were then plotted onto a graph, as shown below.

boatyard science fair project

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Complexity level:
5
Project cost ($):
150
Time required:
1 hour for preparation, 1 day for experiment
Material availability:
Easily found. However, transportation to the various locations, as well as access to a laboratory, is required
Safety concerns:

Be careful when gathering water samples at the boatyard. Adult supervision required.