ELI5: Explain Like I'm 5

Pebble

A pebble is a really small piece of rock that you can hold in your hand. It's like a little rock cousin! Pebbles are often smooth because they've been in water for a long time and the water has made them that way. You can find pebbles on the ground or in a river or even at a beach. People sometimes use pebbles to decorate their gardens or to make pretty designs. They come in all different shapes and sizes, just like rocks!
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