Question

The diagrams below represent the four states of matter.

A container holds a number of blue balls, loosely packed. A container holds small number of yellow balls, spaced at random in the container.
Diagram 1 Diagram 2

A container holds a number of red balls, closely and neatly packed. A container holds a small number of balls. Some are pink and labeled with a plus sign, and some are blue and labeled with a minus sign.
Diagram 3 Diagram 4

Which diagram represents the phase that occurs after a solid melts?
diagram 1
diagram 2
diagram 3
diagram 4

Answer 1

Diagram 1 — a liquid. Melting turns a solid (closely packed, fixed particles) into a liquid (particles still close but free to move around).