Choose all the answers that apply.

Question

Metamorphic rocks are formed from _____.

pressure
rock fragments and sediment
cooling magma
heat
chemical reactions

Answer 1

Metamorphic rocks are formed from:

• pressure
• heat
• chemical reactions

Metamorphic rocks are created when pre-existing rocks (either igneous, sedimentary, or other metamorphic rocks) undergo changes due to high pressure, high temperatures, and/or chemical processes, but they do not form from cooling magma or rock fragments and sediment.