During Mr. Nye's science class, students were expected to identify various substances using physical properties they could easily measure. Mr. Nye gave each of the five groups a green, metal cube. The students had to identify what metal the cube was made of. The length of each side was 3.0 cm and the mass was 270 grams.

What property should Mr. Nye's science students use to identify the metal in the cubes?

A) color

B) density

C) mass

D) volume