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Social Studies → Geography

Delta vs. Estuary

What are you trying to remember?

How can you remember the difference between a delta and an estuary?

The Cue

Delta → River drops sediment | Estuary → River mixes with seawater

Why it works

A delta forms when a river deposits sediment near its mouth, building up land. An estuary is a coastal area where river freshwater mixes with seawater. Both features can occur together.

One-line recall

Delta → Drops sediment · Estuary → Mixes waters

Quick Check

Which feature forms when a river deposits sediment?