Answer:
Explanation:
solid is particles packed up together like a family.
liquid is made out of particles as well but the are a little spaced out like a bunch of friends going home after a busy school day.
A solid changes state because when heat is applied it states changing state into a liquid.
like you freeze an ice cube and when it out on a summer day in a drink it starts melting AKA (A SOLID + HEAT =A LIQUID
