Question

match each word to its definition.
a type of rock that forms when melted rock cools and hardens
type of rock that is created from pre - viously existed rock by the action of intense heat and pressure
the process during which rocks are formed, change, wear down, and are formed again over long periods of time
a. igneous rock
b. sedimentary rock
c. rock cycle
d. metamorphic rock

Explanation:

Igneous rocks form from cooled - melted rock. Metamorphic rocks are created from pre - existing rock by heat and pressure. The rock cycle is the process of rock formation, change, and re - formation over time.

Answer:

1. a. igneous rock
2. d. metamorphic rock
3. c. rock cycle