Question

. Hanna hypothesizes that granite is denser than sandstone. How can Hanna test her hypothesis?
Measure the mass of the rocks with a balance and the volume of the rocks with water and a graduated cylinder. Then calculate their densities.

Examine the rocks under a hand lens and determine which rock seems to have the largest particles.

Melt each rock down inside a high-temperature furnace, and then measure the volume of the two liquefied rocks.

Weigh each rock to determine which is the heaviest, and thus the densest.