6INT Spring Science Midterm Review

______ happens when wind, water or mass movements cause rocks to rub against each other and break down.

• Nekton

• Eroision

• Abrasion

• Humus

________ happens when rock is broken down, whether through mechanical or chemical means.

• Weathering

• Erosion

• Currents

• Ice wedging

The _________ is the level that ground water collects under the Earth's surface.

• water table

• spring

• longshore currents

• porosity

_______ is an important part of soil because it contains organic material.

• Humus

• Soil

• Ice

• Bedrock

The amount of material a river carries is its _______.

• load

• deposition

• erosion

• package

________ is a loose mixture of small mineral pieces, organic material, water and air.

• Soil

• Humus

• Parent rock

• Climate

______ happens on the inside of a river bend because the water is moving slower.

• Deposition

• Erosion

• Dam building

• An oxbow lake

_______ happens on the outside of a river bend because the water is moving faster there.

• Erosion

• Deposition

• Flooding

• Beach building

A ________ is the path that a river follows.

• channel

• watershed

• tributary

• divide

_________ forms when two river bends meet each other and change the shape and direction the river goes.

• An oxbow lake

• A sandbar

• A youthful river

• A canyon