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Page 1: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break
Page 2: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

Learning Objectives

WA State Standard 6-8 ES2GStudents know that…

Landforms are created by processes that build up structures and processes that break down and carry away material through erosion and weathering.

Page 3: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

Learning Objectives

WA State Standard 6-8 ES2GStudents are expected to…

Explain how a given landform (e.g. mountain) has been shaped by processes that build up structures (e.g., uplift) and by processes that break down and carry away material (e.g., weathering and erosion).

Page 4: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

What is Erosion?What is Erosion? The process by which weathered rock

and soil particles are movedmoved from place to place.

Page 5: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

What is Deposition?What is Deposition? The process by which weathered

sediments are laid downlaid down in a new location creating new landforms.

Page 6: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

5 Causes of Erosion5 Causes of Erosion Gravity Glaciers Wind Surface Water / Running Water Ocean Shoreline / Ocean Waves

Page 7: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

1. GRAVITY1. GRAVITY PullsPulls rock and soil down a slope

Called Mass MovementMass Movement Can be RAPID

Rockslides Mudflow Avalanche

Page 8: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break
Page 9: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

GRAVITYGRAVITY Can be Slow

Slump Creep

Page 10: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

Mass Wasting Video Clip

Page 11: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

2. GLACIERS2. GLACIERS Carry very largelarge to very smallsmall

debris Most powerful agent What do they deposit?

Form piles called morainesmoraines Drumlins – little mounds Glacial lakes Kettle lakes U-shaped valleys

Page 12: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

MORAINES

Page 13: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

DRUMLINS

GLACIAL LAKES

Page 14: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

KETTLE LAKES

U-SHAPED VALLEYS

Page 15: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

GLACIERS

Page 16: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

Glacial Erosion clip

Page 17: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

3. WIND3. WIND Removes looseloose material from the earth’s

surface. Amount of material carried depends on wind wind

speedspeed Most active in desertsdeserts, plowed fields, beaches

What does wind deposit? Loess-Loess- layer of fine silt or sand Dunes-Dunes- mounds of sand

Page 18: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

LOESS

Page 19: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

DUNES

Page 20: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

Wind Erosion Clip

Page 21: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

4. RUNNING WATER4. RUNNING WATERMAJOR CAUSE OF EROSION

When water moves it carries particle called the loadload.

SpeedSpeed of water determines the size of the load Creates canyonscanyons and valleys

What do rivers create/deposit?What do rivers create/deposit? Deltas OxbowOxbow lakes Flood plains

Page 22: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

RIVER DELTAS

Mississippi River Delta Clip

Page 23: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

OXBOW LAKES

Page 24: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

FLOOD PLAINS

Page 25: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

5. WAVES5. WAVES Constantly erode and shapeshape the

shoreline.

What landforms do waves What landforms do waves create?create? Sea cliffs Sea stacksstacks and caves

Page 26: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

SEA STACKS

Page 27: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

SEA STACKS & CLIFFS

Page 28: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

Cape Flattery, Olympic Peninsula

SEA CAVES

Page 29: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

What do waves deposit?What do waves deposit?

Beaches Spits sand barssand bars Barrier Islands

5. WAVES5. WAVES

Page 30: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break
Page 31: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

Barrier Islands

Page 32: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

Spits & Sandbars

Page 33: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

LANDFORMS CREATED BY LANDFORMS CREATED BY LIVING THINGSLIVING THINGS

Page 34: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

Erosion by Brainpop

1) What can help protect soil against erosion?

2) Name one surface feature caused by erosion.

3) Why can’t you see glacial movement in action?

Page 35: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

Learning Objective

WA State Standard 6-8 ES3EStudents know that…

Living organisms have played several critical roles in shaping landforms that we see today.

Page 36: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

Learning Objective

WA State Standard 6-8 ES3EStudents are expected to…

List several ways that living organisms have shaped landforms (e.g., coral islands, limestone deposits, oil and coal deposits).

Page 37: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

Coral Islands Lava from an underwater volcano builds

up an island. Living organisms begin living around the shores of the island (polyps).

Volcano becomes inactive, sinks, coral dies, an island forms.

The formation is a hard rock-like material formed by the skeleton of marine polyps and sand (takes millions of years!)

Page 38: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

Coral Islands Usually forms a ring and partially or

totally encloses a shallow body of water, or lagoon

Most are found in the Pacific Ocean

Page 39: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

Limestone Deposits Form underwater from the shells

of dead animals

Takes millions of years!

Page 40: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

Limestone Deposits

Page 41: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

Oil/Coal Deposits Plant matter accumulates at the

bottom of a body of water (must be protected by from decomposition and oxygen exposure—usually gets covered by mud or an acidic water layer). Over millions of years, it forms into a hardened brownish black sedimentary rock.

Page 42: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

Oil/Coal Deposits Coal is a fossil fuel and is the

largest source of energy and the largest source of carbon dioxide emissions

Coal is extracted from the ground by mining, either underground or in open pits.

Page 43: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

Oil/Coal Deposits Oil is generally formed from

marine deposits and coal is generally formed from land vegetation.

Page 44: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break
Page 45: Learning Objectives WA State Standard 6-8 ES2G Students know that… Landforms are created by processes that build up structures and processes that break

SourcesSources http://www.pbs.org/wgbh/nova/

caves/form_bacteria.html


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