Explain melting using increased particle energy and changed particle arrangement.

Explain melting using increased particle energy and changed particle arrangement. Unit lens: Check the units before giving the final statement so the physics quantity is not swapped. In Changes of state, this means changes of state are explained by particle energy and arrangement. The answer should use the approved wording from Changes of state and the particle model, include melting, and avoid drifting into another section of Particle model of matter. For revision, practise saying the exact objective aloud, then add the one calculation, particle movement, collision, graph, or practical detail that makes the statement true. A strong exam response for checkpoint 18 is specific to explain melting using increased particle energy and changed particle arrangement and does not reuse a generic explanation from a neighbouring objective.