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Science · Grades 3–4

Sediment

noun

Solid material (sand, gravel, mud) that settles at the bottom of a liquid.

Example Sentences

"Layers of sediment at the bottom of a lake can preserve fossils."

"Rivers carry sediment from mountains to the sea."

Synonyms & Related Terms

siltdeposit

Quick Check

Which best describes the meaning of sediment?

Study Tips

To remember sediment, try writing it in a sentence of your own. Connect it to something you already know about science.

Use it in conversation today — saying a word aloud three times helps lock it into long-term memory.