Question

When water goes above and below its freezing point, what rock-breaking phenomenon is common?

Answer 1

ice wedging

Rocks can break apart into smaller pieces in many ways. Ice wedging is common where water goes above and below its freezing point   Figure below  . This can happen in winter in the mid-latitudes or in colder climates in summer. Ice wedging is common in mountainous regions like the Sierra Nevada pictured above.