Phase Changes: When a Solid Melts

question 68

Multiple Choice

Phase changes: When a solid melts,

• A) the temperature of the substance increases.
• B) the temperature of the substance decreases.
• C) heat energy leaves the substance.
• D) heat energy enters the substance.

---

Definitions:

High Temperature

A condition or state of matter characterized by a heat level that is significantly above the normal or expected temperature range.

Metamorphic Conditions

The environmental conditions, including heat, pressure, and chemical processes, that transform the mineral composition and structure of a rock.

Contact Metamorphism

A type of metamorphism that occurs when rocks are heated and chemically altered by close contact with hot magma or lava.

Shallow Levels

Areas near the Earth's surface or at a minimal depth below it.