Benchmark Objective: SC.6.E.6.1 Describe and give examples of ways in which Earth's surface is built up and torn down by physical and chemical weathering, erosion, and deposition. DOK: Moderate

LEARNING GOAL: WE WILL LEARN THE MANY WAYS

WHICH EARTH'S SURFACE IS BUILT UP AND TORN DOWN.

LEARNING GOAL: WE WILL LEARN THE MANY WAYS WHICH EARTH'S SURFACE IS BUILT UP AND TORN DOWN.

LEVEL 4 = I can…. Analyze the built up and tear down of the Earth’s surface.

Predict the future appearance of the land over time. I can also do levels 3-2.

LEVEL 3 = I can…. Compare and contrast physical weathering and chemical

weathering. I can also do level 2. LEVEL 2 = I can….

Determine the cause and effect of weathering and erosion. LEVEL 1 = I can….

With some assistance/help, I can do some of level 2, otherwise, I am confused and need more time.

LEVEL 0 = I am totally lost and confused. I really need help.

WEATHERING & EROSIONWhat is Weathering? Weathering is a destructive force;

it naturally breaks rocks down into sediment.

Two basic types of weathering: 1) mechanical 2) chemical

Chemical Weathering

For example:

Is the changing of a rock or a mineral’s chemical composition by natural forces.

Rusting Reaction with acid Formation of clay

Acid produced by plants (and animals) can cause biological weathering.

What is Erosion?

For example:

Erosion is the weathering of rock and the transportation of sediment.

Sediments are broken-down pieces of rock from the weathering of larger rock.

GlacierMuddy riverClear mountain riverWind blown sand like in sand

dunes

MRS. DEGL 6

Erosion (transport)There are 5 main agents of erosion:1. *Running Water*2. Glaciers3. Wind4. Gravity 5. Man

Weathering has to happen before erosion. The rocks have to be broken into smaller sediments before they can be eroded away.

Wind Erosion

Glacier

Mechanical Weathering

For example:

Mechanical weathering is the breaking down of rock into sediment by water, ice, or wind.

Biological Weathering –Another form of mechanical weathering that break down of rocks into sediments by plants and animals. Moving waterWavesFreezing waterMoving Ice (glaciers)WindPlantsAnimals

CHEMICAL VS. MECHANICAL WEATHERING

Chemical

Mechanical

What happens to sediment after deposition?

What is Deposition?

1. Burial

2. Compaction

3. Cementation

4. Formation of new rock

It is the laying down of sediments (after erosion has occurred);

a constructive force.

10

Meandering (Curving) River/Stream

Straight Flowing River/Stream

Sediments are traveling the fastest in the center directly below the surface.

Erosion happens on the outside of turns.

Deposition happens on the inside of turns.

Running Water

SHOW THE PROCESS AND ACTIONS

Weathering Erosion Depositi

on

Action?? Action?? Action??

Examples Examples Examples

DETERMINE THE CAUSE AND EFFECT OF WEATHERING AND EROSION

weathering and erosion

CAUSES EFFECTS

#1: PREDICT THE FUTURE OF THIS LAND OVER TIME.

#2: PREDICT THE FUTURE OF THIS LAND OVER TIME.

#3: PREDICT THE FUTURE OF THIS LAND OVER TIME.

LEARNING GOAL: WE WILL LEARN THE MANY WAYS WHICH EARTH'S SURFACE IS BUILT UP AND TORN DOWN.

LEVEL 4 = I can…. Analyze the built up and tare down of the Earth’s surface.

Predict the future appearance of the land over time. I can also do levels 3-2.

LEVEL 3 = I can…. Compare and contrast physical weathering and chemical

weathering. I can also do level 2. LEVEL 2 = I can….

Determine the cause and effect of weathering and erosion. LEVEL 1 = I can….

With some assistance/help, I can do some of level 2, otherwise, I am confused and need more time.

LEVEL 0 = I am totally lost and confused. I really need help.

RESOURCES INCLUDE

Compass Learning Odyssey Thinking Map

AVID – Cornell Notes