Physical and chemical changes and properties are observed and tested in order to confirm the identity of a substance or how a substance may act in certain condition. The image below is a rock that, based on its bright yellow color, scientists believe to be sulfur. However, they would like to use a test to confirm this prediction. Which procedure would you recommend the scientists use?

(A) Use volume displacement and the mass of the rock to calculate density.

(B) Measure volume in centimeters cubed and add to mass to determine density.

(C) Find the weight and volume of the rock then multiply to calculate density.

(D) Dissolve the rock in water, then find the mass and volume needed to calculate density.