Erosion and Deposition
Grade 4 · Science · Earth's Changing Surface · Arizona, USA
Lesson Summary
Erosion moves rock and soil from one place to another. Deposition is when that material is dropped in a new location.
Explanation
Wind, water, ice, and gravity can all cause erosion. Rivers carry tiny pieces of rock and soil downstream. Glaciers slowly push rock and dirt as they move. When the wind or water slows down, the material it was carrying is deposited, meaning dropped in a new place. Deltas form when rivers deposit sediment as they reach the ocean. Erosion and deposition work together to reshape Earth's surface over time.
Practice Questions
Q1: What are four forces that cause erosion?
Answer: Wind, water, ice, and gravity.
Q2: What is deposition?
Answer: Deposition is when eroded material, like rock and soil, is dropped in a new location.
Q3: How does a river delta form?
Answer: A river deposits sediment as it slows down and reaches the ocean, building up land called a delta.
People Also Ask
What is Erosion and Deposition in Grade 4 Science?+
Erosion and Deposition is a lesson in the Earth's Changing Surface chapter of Grade 4 Science. It is part of the Arizona, USA school curriculum and covers key concepts that students need to understand at this level.
What grade level covers Erosion and Deposition?+
Erosion and Deposition is taught in Grade 4 as part of the Science curriculum in Arizona, USA.
How can I help my child with Earth's Changing Surface in Science?+
Start with the lesson summary and explanation on this page. Practice the questions provided, then use TutorTom for personalized, step-by-step help with Earth's Changing Surface topics.