Question

jenavius placed a marshmallow in the microwave to make a smore for dessert. the marshmallow expanded when it was heated. how can you best describe why this happened? a as the marshmallow was heated the particles moved faster increasing its volume. b as the marshmallow was heated the particles moved faster decreasing its volume. c as the marshmallow was heated the particles moved slower increasing its volume. d as the marshmallow was heated the particles moved slower decreasing its volume.

Explanation:

When heated, particles gain kinetic energy and move faster. This causes them to spread out and the volume of the marshmallow increases.

Answer:

A. As the marshmallow was heated the particles moved faster increasing its volume.