A class looks at a sandstone sample from a cliff near a river. The students identify it as a sedimentary rock. Then, they discuss what happened to the rock during the
rock cycle.
Student 1: As hot, liquid rock cooled, it created new crystals. The temperature of the liquid rock
determined the size of the minerals.
Student 2: Preexisting minerals that became unstable in high heat and pressure changed into
new minerals to form the sandstone.
Student 3: Deep underground, the existing minerals crystalized and grew larger.
Student 4: Pieces of sand accumulated over time. The sand was buried under more layers and
eventually compressed into a solid rock
Which student has the MOST accurate description? .
A. Student 1
B. Student 2
C. Student 3
D. Student 4