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Chapter 3 – Erosion & Deposition Unit 5. Chapter 3 Mr. Ochoa 6 th grade teacher. Chapter Units. 3-1 Changing Earth’s Surface 3-2 Water Erosion 3-3 Waves & Wind 3-4 Glaciers. Objective and Starter. Objective: Today you will learn about erosion and mass movement.
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Chapter 3 – Erosion & DepositionUnit 5 Chapter 3 Mr. Ochoa 6th grade teacher
Chapter Units • 3-1 Changing Earth’s Surface • 3-2 Water Erosion • 3-3 Waves & Wind • 3-4 Glaciers
Objective and Starter • Objective: Today you will learn about erosion and mass movement. • Starter: What do you know about erosion? • Create a KWL chart
Objective and Starter • Objective: Today you will learn about erosion and mass movement. • Starter: What do you know about erosion? • Create a KWL chart
Background Information • What happens when you step on loose rock or dirt? • What natural events can cause sediment to move?
Sediment • Material that is moved by erosion.
Erosion • The natural process by which natural forces move weathered rock and soil from one place to another.
Deposition • The process by which transported materials are left in a new lactation.
Gravity • The force that moves rock and other materials downhill.
Mass movement • Different types of movement; these include landslides, mudflows, slump, and creep.
Lesson Review • Turn to page 91
Water ErosionChapter 2 section 2 Mr. Ochoa 6th grade teacher
Objective and Starter • Objective: Today you will learn about water erosion. • Starter: What happens when erosion occurs?
Background Information • Do you know any major rivers or lakes in the area? Where are they located? Where does the water come from?
Runoff • Water that moves over Earth’s surface.
Rill • Tiny grooves in soil.
Gully • A large groove or channel in soil that carries runoff after a rain storm.
Stream • A channel along which water is continually flowing down a slope.
Energy • The ability to do work or cause change.
Flood Plain • The flat wide area along a river.
Meander • A loop like bend in a river.
Oxbow Lake • A meander that has been cutoff by the river.
Alluvial Fan • A wide sloping deposit of sediment formed where a stream leaves a mountain.
Delta • A landform built from sediment from a runoff from the ocean or lakes.
load • The amount of sediment a river carries.
Lesson Review • Turn to page 103
Drifting ContinentsChapter 3 Section 3 Mr. Ochoa 6th grade teacher
Objective and Starter • Objective: Today you will learn about waves and wind. • Starter: What happens when sediment is carried down the river.
Background Information • How can you explain the sand and waves at the beach? • How do waves affect the beach? • How do you think beaches form?
Headland • A part of the shore that sticks out into the ocean.
beach • An area of wave washed sediment along a coast.
Long shore drift • The process whereby beach material is gradually shifted laterally as a result of waves meeting the shore
Spit • A beach that projects like a finger into the water.
Sand Dune • A deposit of wind-blown sand.
deflation • The process by which wind removes surface material.
loess • Fine wind deposited sediment.
Lesson Review • Turn to page 114
GlaciersChapter 3Section 4 Mr. Ochoa 6th grade teacher
Objective and Starter • Objective: Today you will learn about glaciers. • Starter: What causes a beach to form?
Background Information • Is there a difference between snow that has just fallen or snow that has been on the ground for a long time?
Glacier • A large mass of ice that moves slowly over land.
Continental glacier • A glacier that covers much of a continent.
Ice Age • Continental glaciers that have covered large parts of Earth’s surface.
Valley glacier • A long narrow glacier that forms when snow and ice build up high in a mountain valley.
plucking • Rocks picked up when a glacier moves across the land.
Till • A mix of sediments that a glacier deposits directly on the surface.
moraine • A ridge that forms when a till deposited at the edges of a glacier.