Sedimentary means relating to rock that is formed by layers of sand, soil, and other materials that have been pressed together over time.
Sedimentary can make people think of old things, like the ground and the Earth.
Examples:
The sedimentary rock is made of many layers.
We can find a lot of sedimentary rocks near the river.
The sedimentary layers show how the Earth has changed.
I like to look at the sedimentary rocks because they are so old.
The sedimentary rock is as old as the dinosaurs!
The sedimentary layers are like a history book for the Earth.