Metamorphic rock

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/metamorphic-rock

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the protolith versatility?Metamorphic rocks can originate from igneous, sedimentary, or pre-existing metamorphic rocks
2. What is the minimum metamorphic conditions?Temperatures exceeding 150-200°C and pressures greater than 100 MPa
3. How do metamorphic rocks form?When an old rock, called a protolith, is heated and pressed by pressure, its minerals rearrange and new minerals grow, making a new rock.
4. What kinds of rocks can become metamorphic rocks?Any rock can turn into a metamorphic rock—igneous, sedimentary, or even another metamorphic rock can be changed.

Metamorphism: The process of mineral, textural, and structural change in solid rocks due to heat, pressure, and chemical reactions.
Protolith: The original, unmetamorphosed rock from which a metamorphic rock is formed.
Foliation: The development of planar fabric in metamorphic rocks, usually due to directed pressure causing mineral alignment.