Log jam

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/log-jam

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 scientific term?Large Woody Debris (LWD) accumulations
2. What is the geomorphological role?Influence channel morphology, sediment transport, and bank stability
3. What is a log jam and why does it happen?A log jam is a pile of trees, branches, and roots that get stuck in a river. It happens when storms, floods, or landslides push wood into the water, and the river carries it until it can’t move any more.
4. How can a log jam be good for the river?It can act like a natural dam, creating new homes for fish and insects. It also helps keep riverbanks steady and lets water flow in different ways.

Geomorphology: The study of the physical features of the surface of the earth and their processes.
Riparian Vegetation: Plants that grow along the banks of rivers and streams.
Interstitial Spaces: Small gaps or spaces between particles or objects, like in a riverbed.
Debris Flood: A flood characterized by a high concentration of solid material, such as logs and sediment.