Erosion and Deposition

Match the word with its definition.

• settling of sediment

• erosion

• when soil or sediment are moved

• deposition

• a hill of sand created by wind

• glacier

• a large mass of ice

• dune

What is one way that water changes the Earths surface?

• by forming metamorphic rock

• by causing earthquakes

• by lifting and carrying loose rocks/dirt

• by creating wind patterns

What is the primary cause of deposition in streams?

• a higher water temperature

• when streams gain energy and flow quickly

• when streams lose energy and flow slowly

• a more narrow stream channel

What is the definition of a dissolved load?

• When minerals and salts dissolve in water and move around

• When tiny particles are moving in water, making it cloudy

• When large particles roll across the bottom of the stream

How do stream deposits contribute to the formation of riverbanks and other features?

• by eroding rock and sand

• by settling and accumulating materials like sand and clay

• by increasing the flow of water

• by increasing the load of dissolved sediment

How does wind change rocks and landscapes through abrasion?

• soil lands on the surface causing rock to grow larger

• wind is unable to change landscapes

• the force of water causes rock to break down

• small particles scrape and rub against rocks

Which type of particle will most easily be picked up and moved by wind?

• medium-sized particles like pebbles

• small particles like sand

• particles are unable to be moved by wind

• large particles like bigger rocks

What is a common deposition feature created by wind?

• sand dunes

• glaciers

• deltas

• canyons

How do glaciers form?

• when ice forms directly on water

• when snow melts and refreezes every day

• when more snow falls than melts each year

• when more ice melts than snow falls each year

Glacier erosion: _______ is debris is picked up by a glacier and moved.

• plucking
• abrasion