Rubble

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/rubble

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 material composition?Fragmented rock exhibiting irregular size, shape, and texture; typically undressed
2. How does rubble form?Rubble can form when rocks crack from freeze‑thaw, heat changes, or when they fall from a cliff. It can also come from chemical changes in minerals or from people cutting or smashing rocks.
3. Why do people use rubble in buildings?Rubble is cheap and easy to get, so early towns and castles used it for the inside of walls and foundations. Today it is still used as a base for roads, in concrete, and to level ground.

Anthropogenic: Originating from human activity rather than natural processes.
Aggregate: Inert granular material such as sand, gravel, or crushed stone used with a binder to form concrete or road surfaces.
Permeability: The ability of a porous material to allow fluids (like water) to pass through it.