1 / 46

Constructive Process Essential Questions

Constructive Process Essential Questions. What are surface features? What are examples of constructive process? How can a surface feature be changed by a constructive process? What are surfaces features caused by constructive processes?. Constructive Process. Deposition –

simone-strong
Download Presentation

Constructive Process Essential Questions

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Constructive ProcessEssential Questions • What are surface features? • What are examples of constructive process? • How can a surface feature be changed by a constructive process? • What are surfaces features caused by constructive processes?

  2. Constructive Process • Deposition – • a process of dropping sediment, dirt, rocks, or particles in on place.

  3. Constructive ProcessExamples of Deposition

  4. Other Constructive Processes

  5. Constructive Process Lesson Review • Deposition is a process that • Dissolves sediment • Breaks down rock to form sediment • Removes sediment from landforms • Drops sediment to form landforms

  6. Lesson Review • Where do deltas form? • In desert areas • At river mouths • On the banks of rivers • In valleys formed by glaciers

  7. Lesson Review • Long shore currents in the ocean help create • Beaches • Dunes • Rivers • Drumlins

  8. Lesson Review • Volcanoes can create new land when they release • Lava • Water • Faults • mud

  9. Lesson Review • What forms moraines? • Wind • Rivers • Glaciers • Volcanoes

  10. Constructive ProcessEssential Questions • What are surface features? • Surface features are landforms and bodies of water that cover the Earth’s surface such as: • Mountains, valleys, canyons, gorges, beaches, sand dunes, barrier Islands, flood-plains, moraines, and drumlins, volcanoes, oceans, lakes, and rivers

  11. Constructive ProcessEssential Questions • What are examples of constructive process? • Deposition • Volcanic Activity • Earthquake Activity • Faulting • Folding

  12. Constructive ProcessEssential Questions • How can a surface feature be changed by a constructive process? • By forces such as wind, water, ice, through the process of deposition. • The movement of the Earth’s crust • Plate Tectonics (movements)

  13. What are surface features formed from constructive processes? Delta Floodplains Barrier island Sand dune Moraine Drumlin Islands Mountain Ranges Cliffs – Fault Scarps Constructive ProcessEssential Questions

  14. Destructive ProcessEssential Questions • What are examples of destructive processes? • How are surface features changed by destructive processes? • What are examples of surface features caused by destructive processes?

  15. Destructive Processes • Weathering– The breaking down of rock • Mechanical / Physical • Freezing and thawing of Rock • Water freezing and expanding in cracks of rock • Impact of organisms • Plant roots growing • Animals burrowing • Chemical • Oxidation / rusting • Carbonic Acid / acid rain • Caverns • Impact of organisms • Acid from Lichen

  16. Destructive Process • Erosion – Movement of rock from one place to another • Water / Rivers • Canyons • Gorges • V shaped Valleys • Water / Ocean Waves • Sea arches • Sea stacks • Wind • Buttes • Desert pavements • Ice / Glaciers • U shape Valleys • Gravity • Mast Wasting

  17. Destructive Process • Volcanic Activity • Movement of Earths Crust (Plate tectonics) • Reshaping of Mountains • Earthquakes • Movement of Earths Crust (Plate tectonics) • Trenches • cracks in the Earth Curst

  18. Lesson Review • What is weathering? • A type of climate • The transport of sediment • The breakdown of rock • The aging of rock

  19. Lesson Review • Which of theses is caused by chemical weathering? • desert pavement • formation of U-shaped valleys • formation of rust • ice expanding in cracks in rock at is weathering?

  20. Lesson Review • How do earthquakes change the land? • They transport sediment. • They form cracks in the surface. • They release ash and lava. • They cause chemical weathering.

  21. Lesson Review • A river can form • Sea arches. • U-shaped valleys. • V-shaped valleys. • Desert pavement.

  22. Destructive ProcessEssential Questions • What are examples of destructive processes? • Weathering • Mechanical / Physical • Chemical • Erosion • Volcanic Activity • Earthquake Acuity

  23. Destructive ProcessEssential Questions • How are surface features changed by destructive processes? • Freezing and thawing of the earth’s crust • Freezing water in cracks of rock • Oxidation / rusting • Carbonic acid / acid rain • Impact of organisms • Water / rivers and oceans • Ice / glaciers • Wind • Gravity • Movement of earth’s plates / plate tectonics

  24. Destructive ProcessEssential Questions • What are examples of surface features caused by destructive processes? • Caverns / Carbonic Acid • V-shaped valleys / River water • Canyon / gorges / River water • Sea arches / Ocean Waves • Sea stacks / Ocean Waves • Buttes / Wind • Desert pavements / Wind • Reshaped mountains / Volcanoes • Trenches / Earthquakes

  25. Controlling Constructive and Destructive Processes EQ • How can constructive and destructive processes be controlled through the use of technology? • How does technology affect constructive and destructive processes? • What are examples of technology used to control constructive and destructive processes?

  26. Effects on Constructive Processes • Dam – a structure built across a river to control its flow • Positive Effect • Flood Control • Hydroelectric Power • Negative Effect • Holds back sediment • Prevents deposition of flood plains, deltas, and beaches

  27. Effects on Destructive Processes • Prevention of beach erosion • Groin – a structure built perpendicular to the beach. • Positive Effect • Traps sand that moves along the shore and causing the beach to build up. • Negative Effect • Beach Erosion down stream is worse. • Seawall – a structure built parallel to the shore • Positive Effect • Protects land behind if from ocean the ocean waves • Negative Effect • Ocean side beach will erode • Beach Nourishment – sand from ocean or nearby rivers are pumped onto the beach

  28. Effects on Destructive Processes • Prevention of beach erosion (cont) • Seawall – a structure built parallel to the shore • Positive Effect • Protects land behind if from ocean the ocean waves • Negative Effect • Ocean side beach will erode • Beach Nourishment – sand from ocean or nearby rivers are pumped onto the beach

  29. Effects on Destructive Processes • Prevention of soil erosion • Contour Plowing – method in which farmers plow across the sided of hill instead of down • Terracing – the planting of corps on terraces (steps) built into steep hillsides. • Windbreaks– rows of plants or fences. • Slow down wind and limit the distance it can carry soil. • Vegetation – used to hold soil in place • Storm drain management – a system of drains • Prevents flooding and soil erosion

  30. Effects of Volcanoes and Earthquakes • Volcanoes and Earthquakes can not be controlled; • However scientist have ways to determine when and where these they might occur. • Volcanoes – • instruments are used to detect changes in volcanoes • Earthquakes – • Detailed maps show major faults • Safety Education • No new buildings on or near faults • Building codes to resists earthquakes • Seismographs – measures earthquakes on a rector scale

  31. Lesson Review • What is the purpose of a groin? • to strengthen dams • to stop beach erosion • to create new sediment on shorelines • to break down headlands

  32. Lesson Review • Beaches that have eroded are reclaimed through • weathering. • building of seawalls. • beach nourishment. • building of terraces.

  33. Lesson Review • Which of these is not a way to prevent soil erosion? • planting vegetation • contour plowing • building windbreaks • building dams

  34. Lesson Review • Scientist know where earthquakes will occur because they know the locations of • faults • volcanoes • mountains • long-shore currents.

  35. Lesson Review • Which of these do scientists use to predict when a volcano is likely to erupt? • the age of the volcano • earthquakes beneath the volcano • temperature of nearby rivers • the hardness of rock near the volcano

  36. Controlling Constructive and Destructive Processes EQ • How can constructive and destructive processes be controlled through the use of technology? • Flooding • Dams • Beach Erosion • Groins • Seawalls • Beach nourishment • Soil Erosion • Contour plowing • Terracing • Wind breaks • Planting of vegetation • Storm drain management systems

  37. Controlling Constructive and Destructive Processes EQ • How does technology effect constructive and destructive processes? • Dams – • Positive Effect • Flood Control • Hydroelectric Power • Negative Effect • Prevents deposition of flood plains, deltas, and beaches • Groins – • Positive Effect • Traps sand that moves along the shore causing the beach to build up. • Negative Effect • Beach Erosion down stream is worse. • Seawalls – • Positive Effect • Protects land behind from ocean waves • Negative Effect • Ocean side beach will erode

  38. Controlling Constructive and Destructive Processes EQ • What are examples of technology used to control constructive and destructive processes? • Dams • Groins • Seawalls • Wind Breaks • Contour plowing technique • Terracing technique • Storm Drainage Systems • Beach Nourishment

  39. Unit Review • What landform forms from deposition at the mouths of rivers? • a delta • a floodplain • a sand dune • a moraine

  40. Unit Review • Deposition forms these features on coasts. • drumlins • floodplains • barrier islands • U-shaped valleys

  41. Unit Review • What causes V shaped valleys to form? • deposition at river mouths • erosion by rivers • weathering by wind • erosion by glaciers

  42. Unit Review • A dam across a river can cause • the formation of a delta. • the carving of a valley. • the erosion of a beach. • the formation of a sea stack.

  43. Unit Review • Which of these helps prevent the harmful effects of erosion? • dams • volcanoes • Long-shore currents • contour plowing

  44. Unit Review • In which type of climate are you most likely to find a sand dune tht is not on the coast? • dry • humid • icy • hot

  45. Unit Review • What is the purpose of a groin? • to prevent chemical erosion of rock • to release trapped sediment from behind dams • to help predict volcanic activity • to stop erosion of beaches

  46. Unit Review • What does erosion do? • breaks down rock physically • moves broken pieces of rock • changes rock chemically • change sediment into rock

More Related