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What's the Matter?

Across
A substance that is in any physical thing.
Solid to gas
A negatively charged particle.
Liquid to solid
Liquid to gas
A change in a substance that can be turned back into its original form.
Solid to liquid
Gas to liquid
A part of the atom that holds the protons and neutrons.
A state of matter with tightly packed particles.
Down
A thing that is made by two or more atoms combining.
The smallest part of matter.
A positively charged particle.
A change in a substance that is permanent and cannot be changed back to its original form.
A particle with no charge at all.
A state of matter that has the loosest particles out of all three states of matter.
A state of matter that has loose particles and takes the shape of its container.