Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Erosion & Deposition
6th Grade
| Term | Definition |
|---|---|
| delta | large deposit of sediment that forms where a stream enters a large body of water |
| deposition | laying down or settling of eroded material |
| erosion | removal of weathered material from one location to another |
| process | ongoing event or series of related events |
| abrasion | grinding away of rock or other surfaces as particles carried by wind,water, or ice scrape against them |
| dune | pile of windblown sand |
| longshore current | flows parallel to the shoreline |
| meander | broad, C-shaped curve in a stream |
| glacier | large mass of ice that formed on land and moves slowly across Earth's surface |
| landslide | rapid downhill movement of soil, loose rocks, and boulders |
| mass wasting | downhill movement of a large mass of rocks or soil because of gravity |
| moraine | mound or ridge of unsorted sediment deposited by a glacier |
| outwash | layered sediment deposited by streams of water that flowed from a melting glacier |
| talus | pile of angular rocks and sediment from a rockfall |
| till | mixture of various sizes of sediment deposited by a glacier |
| features that are created due to glacier erosion | Aretes, Horn, Cirque, Hanging Valley, U-shaped Valley |
| What are the stages of stream development? | young, mature, old |
| Characteristics of young stream | swift, rapid, waterfall |
| Characteristics of mature stream | smooth, meander, gentle slopes, slides, erodes quickly |
| Characteristics of old stream | flat flood plain, Oxbow lakes, slow, deposition on inside curves |
| How are erosion and deposition changing the face of the Earth? | Erosion & deposition move particles around |
| How do wind, water, ice, and plants weather material? | They all are weathering agents. They all go up against materials & weather them. Ice & plant roots grow and expand in rocks to break them up |
| Explain erosion and deposition in a river | River erosion picks up particles and moves them down the stream. Deposition lays the particles down. |
| What are the factors that can affect erosion? | Speed or energy of motion of water or wing strength or resisance of rock to erode |
| How can erosion be prevented? | You can put something over the surface to control runoff & by planting vegetation |
| What causes mass wasting or mass movements? | Gravity causes mass wasting and mass movements. Steep topography, slope, & heavy rain |
| What are examples and non-examples of mass wasting? | Examples: landslides, downhill creeps, and rockfall. Non-examples:till |
| Name at least 2 places where ice sheets still exist | Antarctica, Alaska, Greenland |
| What determines the amount of runoff? | rain & vegetation |
| What is a broad, flat area next to a river? | flood plain |
| ______ is the downhill movement of a large mass of rocks or soil because of the pull of gravity. | mass wasting |
| Mass wasting usually occurs on the side of a hill when the soil is _________. | soaked with rain water |
| Thick _______ on slopes can help prevent mass wasting. | vegetation |
| A _______ is the rapid downhill movement of soil, loose rocks, and boulders. | landslide |
| In landslides, such as mudslides and _____, soil moves in a large mass. | slump |
| Erosion due to mass wasting continues as long as the force of ______ is greater than other forces holding rock and soil in place. | gravity |
| The material from a ______ eventually comes to rest, usually in a flat space. | slump |
| _______ is a pile of angular rocks and sediment from a rockfall. | Talus |
| Building on a steep slope can _____ the chances that mass wasting will occur. Removing _________ from a slop and using heavy ___________ promote mass wasting | increase vegetation construction |
| A _____ is a large mass of ice that formed on land and moves slowly across Earth's surface. | glacier |
| Glaciers form where the amount of snowfall is ______ than the amount of snow melt. | greater |
| ________ glaciers form in mountains. | Alpine |
| ___________ cover large areas of land and move outward from central locations. | Ice sheets |
| Glaciers cause ________ as they move, with rocks frozen in the ice, carving grooves in underlying surfaces of Earth. | erosion |
| Glacial erosion can cause sharp ridges called _______ and carve out U-shaped and hanging _______. | arete valley |
| Glaciers ______ materials when they melt, either when they flow downhill to warmer places or when the climate gets warmer. | deposit |
| ______ is a mixture of various sizes of sediment deposited by a glacier. | Till |
| A mound or ridge of unsorted sediment deposited by a glacier is a ________. | moraine |
| ________ is layered sediment deposited by streams of water that flow from a melting glacier. It is mainly well-sorted _____ and gravel. | Outwash sand |
| _____________ is the gradual increase in Earth's average temperature. | Global warming |
| ______ activities contribute to global warming. | Human |
| Because of global warming, glaciers have been melting, which leads to a ________ in sea level. | rise |
| The gouging of bedrock by rock fragments dragged by glaciers results in _______. | striations |
| Till and outwash are both deposits of sediment from ________. | glacial erosion |
| Leaning poles are on indication of a kind of mass movement called ______. | creep |
| A _____ is a mass movement that occurs when underlying material is weakened and can no longer support material on top of it. | slump |
| When particles of fine windblown sediement settle out of the air and become packed, the resulting deposit is called ________. | loess |
| When a glacier stops moving forward, a ______ may be deposited in front of it. | moraine |
| The boulders, sand, clay, and silt that drop from a glacier when it retreats are called ________. | till |
| _____ is the process by which a glacier loosens and moves rocks. | plucking |
Created by:
alisonhowd
Popular Earth Science sets