Yes, it is.
yes
there is no property that can be observed without somehow changing the identity of the object due to Heisenberg's Uncertainty Principle.
will objects rust more quickly in salt water or plain water without salt
as you well know
density
No. It is possible to change direction without changing speed. However, it is not possible to change direction without changing velocity.
A nonzero whole number is a quantity which does not equal zero and number without fractions.
because it is in equilibrium
The answer depends entirely on how the dimensions change. It is possible to change the dimensions without changing the perimeter. It is also possible to change the dimensions without changing the area. (And it is possible to change the area without changing the perimeter.)
It is very possible. It is actually one of the brightest objects in the night sky.
It isn't possible
Pointy objects such as needles??
yes
You can multiply any number (including zero) by one without changing it. Similarly, you can raise any number (once again, including zero) to power one and it won't change.
The answer depends on what variables are plotted on the graph. Without that information it is not possible to answer the question.
No. However it is possible in a movie :) Some people may pretend that they can do this e.g. by blowing the object. However, it is not possible
does add color to water tell about changing matter without changing its shape