A group of students studied how water can weather rocks. They soaked a small sample of sandstone in water. Then, they froze
the sample overnight. They warmed and resoaked the sample the next day. They continued this process each day for three
months.
Water
26 °C/
80 °F
Rock sample
0 °C/
32 °F
Rock sample
Water
Repeat for 3 months
What change to the rock sample would students observe at the end of the experiment?
O A. The rock dissolved because it repeatedly melted and
evaporated.
O B. The rock gained mass because new rock formed around
the edge.
26 °C /
80 °F
Rock sample
OC. The rock broke into smaller pieces because cracks formed
in the rock.
O D. The rock became a different rock type because its
chemical structure changed.