Shut-in (river)

High school (ages 12+)
Geography

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/shut-in-river

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 hydrological function?Serves as primary conduits for groundwater recharge and influences regional aquifer dynamics
2. What is the associated landforms?Sinkholes (dolines), uvalas, poljes, caves, underground streams, and springs
3. What is a shut‑in river?A shut‑in river is a stream that disappears from the surface and flows underground through caves and tunnels. It is also called a disappearing stream or ponor.
4. Why does a shut‑in river vanish underground?The river goes underground because the bedrock, like limestone or dolomite, dissolves slowly and creates cracks and tunnels. When the cracks grow big enough, the water can flow into them.

Epigean: Pertaining to or living on the surface of the earth, as opposed to underground.
Hypogean: Pertaining to or living in the earth below the surface; subterranean.
Ponor: A geological feature where a surface stream sinks underground into a karst area.
Troglobite: An animal species that lives exclusively in subterranean environments.