Plastics do not all behave the same as their composition and additive packages vary. Some have densities greater than water and would sink, others have densities less than water an float. many of the commonly encountered plastics (polyethylene,, polypropylene, etc.) fall into this latter classification. Higher density plastics include Silicones with densities ranging from 1.68 - 2.00 g/cm3
A plastic always sink in oil like a plastic bottle will always float in oil.
Pumice
no it would sink
no, she doesnt
All plastic items float on water, so therefore a plastic boat floats on water.
That depends what it's made of ! A metal one will sink, but a wooden or plastic one will float.
it doesnt
no it doesnt it gets smaller
put water in to let it sink... then put air into it to let it float...
no it doesnt because it has lots of mass which makes in sink.
no it doesnt
doesnt look like it.