Answer the following question given this paragraph: 

If particles do not have enough kinetic energy to overcome the force of attraction between them, matter exists as a solid. The particles are packed closely together and held rigidly in place. All they can do is vibrate. This explains why solids have a fixed volume and a fixed shape.


Q: What state of matter exists if particles do not have enough kinetic energy to overcome the force of attraction between them?


A:
solid