The Earth's Surface

The process of breaking down rocks into smaller pieces is called _____________.

• bedrock

• erosion

• weathering

Which layer of soil contains the most humus?

• bedrock

• subsoil

• topsoil

The type of weathering that happens when water in and around a rock freezes and expands, forcing the rock to break apart, is frost wedging.

• True

• False

When water and oxygen combine with iron in a rock to form rust, physical weathering occurs.

• True

• False

Tags

NGSS.MS-PS1-2

Decayed plant and animal material found in soil is humus.

• True

• False

Tags

NGSS.MS-LS2-3

Which are the three main groups of particles that make up soil from the roughest texture to the smoothest texture?

• silt, clay, sand

• sand, clay, silt

• sand, silt, clay

The moving of sediment from one location to another

• avalanche

• delta

• deposition

• dune

• erosion

the dropping of sediment that has been carried by wind or water

• avalanche

• landslide

• deposition

• delta

• glacier

sediment that builds up at the mouth of a river

• avalanche

• delta

• deposition

• dune

• erosion

Tags

NGSS.MS-ESS2-2

a huge sheet of ice that slowly moves downhill and leaves behind moraines as the ice melts

• avalanche

• landslide

• delta

• glacier

• deposition