Respuesta :
Maybe by testing its density? Depending on what the object is, or what its made of, you might be able to hypothesize what sinks or what floats. Hope this helps! :)
By finding it's density [tex](Density= mass / volume)[/tex] and than comparing it to the waters density (997 kg/m³).
If the density of the object is lower than the waters, it will float, otherwise, it will not.
Hope it helped,
BioTeacher101