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The materials required for this science fair project:

-    40 small glass bottles
-    writing materials


1.    For this science fair project, the independent variable is the location where the water samples are obtained– a boatyard, a boat marina, a beach and tap water. The dependent variable is the amount of copper, lead and zinc found in the water samples. This is determined by sending the water samples to an independent laboratory for testing. The constants (control variables) are the amount of water samples collected and the distance of the location from the boatyard where water samples are collected from.

2.    With the black marker, label the glass bottles ‘boatyard’, ‘marina’, ‘beach’ and ‘tap water’.

3.    Fill each bottle with water from the appropriate location. 10 samples should be taken from each of the locations.

4.    Send the 40 bottles to a laboratory equipped to test for heavy metals to determine the levels of copper, lead and zinc in each water sample.

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Complexity level:
Project cost ($):
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.