How to set up this experiment

[Judy]

You are stranded on an island and a large plastic bin arrives with an oddly shaped object inside warpped in cellophane. You cannot tell visually what the object is made of, but you are given a list of 25 possible materials ranging from feathers to gold. You are told the ojbect can be considered solidly packed and waterproof, but may not be set on fire. You have one hour alone with the object to perform experiments on it. Explain how you would set up an experiment to as accurately as possible determine the nature of the object:?

[Guest]

hello all,

i would like information about surface tension, how to determine surface tension of water? and how to set up the experiment surface tension anybdy have idea about it so please let me know.

Cheers!!! :oops: