Hanna hypothesizes that granite is denser than sandstone. How can Hanna test her hypothesis?

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.

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.

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

WILL MEDAL AND FAN CORRECT ANSWER

Question

Hanna hypothesizes that granite is denser than sandstone. How can Hanna test her hypothesis?

    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.

    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.

    Weigh each rock to determine which is the heaviest, and thus the densest.

WILL MEDAL AND FAN CORRECT ANSWER

gottennis121 · Answer

(Not allowed to give direct answer, it's against the code-of-conduct.) First, does "A" really seem realistic? No. "D" isn't it either, weighing isn't always explaining the density. When finding the density, do you think you'll heat the object or place it in water?