📚 Topic Summary
Erosion is the process where natural forces like wind, water, ice, and gravity wear away and transport soil and rock. Different agents of erosion create unique landforms. For example, rivers carve valleys, glaciers sculpt mountains, wind shapes deserts, and waves mold coastlines. Understanding these processes helps us see how our planet's surface is constantly evolving.
🧪 Part A: Vocabulary
Match the term with its correct definition:
| Term |
Definition |
| 1. Glacier |
A. The grinding and scraping of a rock surface by friction from ice or rock particles carried by water, ice, wind, or gravitational forces. |
| 2. Erosion |
B. The geological process in which earthen materials are worn away and transported by natural forces such as wind or water. |
| 3. Weathering |
C. A large mass of ice moving slowly over a land surface. |
| 4. Abrasion |
D. The breakdown of rocks and minerals at the Earth’s surface, into smaller particles without any transport. |
| 5. Deposition |
E. The process by which sediment settles out of a transporting medium. |
📝 Part B: Fill in the Blanks
Complete the following paragraph using the words: wind, valleys, gravity, sediment, rivers.
________ are powerful agents of erosion, carving deep ________ over time. The eroded material, called ________, is transported downstream. ________ is another force that contributes to erosion, causing landslides and rockfalls. In arid regions, ________ plays a significant role in shaping the landscape.
🌍 Part C: Critical Thinking
Choose one agent of erosion (wind, water, ice, or gravity). Describe a specific landform created by that agent and explain the process by which it was formed.