How is metamorphic rock formed?

Science

when lava or magma cools and turns to rock

What are the TWO things that can turn sedimentary rock or igneous rock into metamorphic rock?

Which type of rock is formed when heat and pressure inside the Earth change igneous and sedimentary rock?

Which type of rock is formed when magma or lava cools?

What is the correct word to complete the sentence. Intrusive rocks have larger crystals because the cool ___________.

What is the correct word to complete the sentence. Extrusive rocks have smaller crystals because the cool ___________.

Is diorite an intrusive or extrusive rock?

Is obsidian an intrusive or extrusive rock?