Here are some other terms you might hear:

* Gravel: Larger pieces of sediment, typically larger than 2 millimeters.

* Sand: Sediment particles between 0.0625 and 2 millimeters.

* Silt: Sediment particles between 0.0039 and 0.0625 millimeters.

* Clay: Sediment particles smaller than 0.0039 millimeters.

Sediment can be formed by a variety of processes, including:

* Weathering: The breakdown of rocks due to exposure to the elements (like wind, rain, and ice).

* Erosion: The transportation of weathered rock by wind, water, or ice.

* Biological activity: The breakdown of rocks by living organisms, like plants and animals.

Sediment is important because it can:

* Form soil, which is essential for plant growth.

* Accumulate and solidify over time to form sedimentary rocks.

* Provide clues about the Earth's history.