Question

sentence starters claim, evidence, reasoning
claim
i claim that a phase change is a ____ change because ____________________.
evidence
my evidence is that when ________________ happens, the substance is still ____________.

Explanation:

Una相变 es un cambio físico porque no cambia la identidad química de la sustancia. La evidencia es que cuando un sólido se derrite (por ejemplo, hielo se convierte en agua), la sustancia sigue siendo agua, solo ha cambiado de fase.

Answer:

I claim that a phase change is a physical change because no new chemical substances are formed.
My evidence is that when ice melts, the substance is still water.