Question

SCIENCEEEE!!!!! HELPPPP!!!!

Answer 1

I would say Both are only physical changes.

Step-by-step explanation:

Melting wax isn't creating a new substance, or changing the atomic structure. The wax is only changes from a solid to a liquid state. Sanding a piece if wood is usually done with sandpaper, which can physically be done with your hands. Hope this helped :)

Answer 2

pretty sure it's both are physical changes.