Metamorphic rock examples ( Rocks formed from heat and pressure )

What two main factors transform existing rocks into metamorphic rocks?

• Wind and water

• Heat and pressure

• Freezing and thawing

• Gravity and erosion

What is the original rock that undergoes changes to become a metamorphic rock called?

• Igneous rock

• Sedimentary rock

• Parent rock

• New rock

What characteristic distinguishes foliated metamorphic rocks from nonfoliated metamorphic rocks?

• Foliated rocks are always darker in color

• Nonfoliated rocks are always harder

• Foliated rocks have crystals arranged in parallel layers or stripes

• Nonfoliated rocks are formed only from igneous rocks

Which of the following metamorphic rocks is formed from limestone?

• Slate

• Quartzite

• Marble

• Schist