Silt

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/silt

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 primary mineral component?Quartz (SiO2)
2. What is the key depositional environments?River deltas, floodplains, aeolian (loess) deposits, glacial outwash plains
3. What is silt and how does it help plants grow?Silt is super‑fine dirt between clay and sand. It keeps soil airy and moist, so plants can grow well.
4. How does silt get into rivers and oceans?Rivers carry silt in their water and drop it in floodplains, deltas, or the sea, shaping new land.

Sedimentology: The scientific study of sediments, including their formation, transport, deposition, and lithification.
Aeolian Processes: Geological processes involving transport and deposition by wind, such as the formation of sand dunes and loess.
Liquefaction: A phenomenon where saturated granular soils lose their strength and stiffness under cyclic loading, behaving like a liquid.