Question

A classmate states that igneous rock must always become sedimentary rock next, according to the rock cycle. Explain why this statement is not correct.

Answer 1

Using the rock cycle, it shows that with heat and pressure, an igneous rock can turn into a metamorphic rock.

Explanation:

This is incorrect because it can also convert to sediments by weathering, erosion, and deposition. The Rock Cycle is a group of transformations. Igneous rock can transform into sedimentary rock or into metamorphic rock. Sedimentary rock can transform into metamorphic rock or into igneous rock. Metamorphic rock can convert into an igneous or sedimentary rock.

Answer 2

This statement is incorrect because igneous rocks can melt, and be exposed to heat and pressure, which would change the igneous rock into one of the other two forms of rock excluding the sedimentary rock type.