Science: Erosion and Deposition

a type of rock formed by gravity pressing fragments of other rocks and minerals together as they settle on land or under the ocean over a long period of time

• mountain

• sedimentary rock

• erosion

• canyon

a deep valley carved by flowing water

• mountain

• soil

• canyon

• surface

(n) an amount of rock or soil that has been laid down in an area; (v) to drop; to lay down

When soil is moved from one location to another by wind or water. After rocks have been broken down, the small particles are transported to other locations by wind, water, ice, and gravity.

• erosion

• rock

• delta

• river

(n) an amount of rock or soil that has been laid down in an area; (v) to drop; to lay down

• sedimentary rock

• delta

• deposit

• canyon

big body of water flowing through land on either side

• mountain

• sediment

• river

• delta

an area of land that forms a peak at a high elevation

• mountain

• canyon

• sediment

• soil

the top of an object; the outside of an object; the boundary between two objects or materials

• delta

• erosion

• surface

• deposit

solid material, moved by wind and water, that settles on the surface of land or the bottom of a body of water

• suface

• delta

• river

• sediment

the outer layer of Earth's crust in which plants can grow; made of bits of dead plant and animal material as well as bits of rocks and minerals

• soil

• mountain

• canyon

• sediment

a fan-shaped mass of mud and other sediment that forms where a river enters a large body of water

• river

• erosion

• delta

• soil