Moraine

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/moraine

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 composition?Unsorted, unstratified glacial till (boulders, gravel, sand, clay)
2. What is the formation mechanisms?Lodgement (basal deposition) and ablation (melting release) of debris
3. How do glaciers create moraines?Glaciers pick up rocks from the ground, carry them inside or on top of the ice, and then drop them when the ice melts or slows down.
4. What are the different types of moraines?There are several kinds: terminal moraines at the glacier's end, lateral moraines along its sides, medial moraines in the middle of joined glaciers, ground moraines spread across the land, recessional moraines from temporary stops, and supraglacial moraines on the ice surface.

Unconsolidated Debris: Loose, unsorted fragments of rock and mineral matter not cemented together.
Glacial Flour: Finely ground rock powder produced by glacial abrasion, often found in glacial meltwater.
Proglacial Lake: A lake formed at the edge of a glacier, often dammed by moraine deposits.