Question

An unknown material cannot be compressed and will not change its shape. Which state of matter best describes this material?

Gas
Liquid
Solid
None of the above

Answer 1

Solid

EXPLANATION: it’s solid because it can not be compressed, liquid can also not be compressed, but how do we know it’s solid? Well as it says “it will not change its shape” so of course solid cannot change it’s shape because the particles are tightly packed, solid has fixed shape and fixed volume…

Answer 2

A solid

Step-by-step explanation:

If you think about it using real life examples, it's not too hard of a question.
One way of solving this problem is to think of 3 separate materials that are a gas, a liquid, and a solid.
We know that helium is a gas, tap water is a liquid, and ice is a solid.
Since the material cannot be compressed and we know that helium can be compressed, the material can't be a gas.
Since the material won't change its shape, and we know that water flows easily and changes its shape, we know that this material is not a liquid.
Ice doesn't compress easily and won't change its shape, so the material behaves like ice in these two features. The material thus is likely a solid.