Cave-in

High school (ages 12+)
Environment & Earth

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/cave-in

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 anthropogenic triggers?Aging underground infrastructure (pipes, tunnels), construction activities, altered drainage patterns
2. What is the detection methods?Geophysical surveys (GPR, ERT), remote sensing, hydrological modeling, geotechnical investigations
3. What causes a cave-in?A cave-in happens when the ground above a hidden hole can no longer hold up. This can be because underground rock like limestone dissolves, making big empty spaces, or because old pipes and tunnels break and leave voids.
4. How do sinkholes form?Sinkholes form when underground cavities grow bigger and the soil or sand above them can’t stay in place. When the support is gone, the ground drops suddenly.

Karstification: The process by which soluble rocks are dissolved by water, forming underground caves and sinkholes.
Overburden: The layer of soil and rock that lies on top of a mineral deposit or bedrock.
Shear Strength: The resistance of a soil or rock mass to failure or sliding.
Geophysical Surveys: Methods used to study the Earth's subsurface using physical principles without direct sampling.