someone picks it up and puts it in a river, then the river turns it into a pebble with erosion.
It starts off as a rock/rocky stone and through erosion becomes a pebble.
The smallest type of rock is a pebble. A pebble can be made out of most rocks and is the size of a marble.
1 balloon's worth.That's like asking "how big is a rock". Do you mean a pebble, or a bigger rock, or a big rock like a boulder, or a truly huge rock like a mountain? Actually, it's even worse than that, because with a balloon pressure becomes a factor.
Granite is a type of rock or stone, and varies greatly in size, from as tiny as a pebble to as big as a mountain.
A rock has a rough surfaceA pebble has a smooth surface
what is another name for a small rock not a pebble not a stone
A pebble is probably a little bit of rock worn down from a big rock.
some states in the rock mountain region
it is sedimentary
A pebble.
pebble
A small rock is called a pebble.