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Weathering & Erosion

Sixth graders learn how Earth’s surface is constantly reshaped — weathering breaks rock down, erosion carries it away, and deposition drops it in new places — slowly carving canyons and building beaches over time.

Grade 6Surface Processes50 minutes1 class period5E ModelExplicit teaching4 StandardsNGSS
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Lesson at a Glance

Everything you need before the bell rings

Learning Objectives

Students will be able to…

  • ✓Explain weathering.
  • ✓Distinguish mechanical and chemical.
  • ✓Explain erosion.
  • ✓Explain deposition.
Essential Question

The Grand Canyon was carved by a river; smooth pebbles were once jagged rocks. What slow but relentless forces break down and move Earth’s surface?

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Lesson Phases
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Vocabulary Terms
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Standards Aligned
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Interactive Task
Explore · Interactive

The Surface Processes Explorer

Project this and tap each idea. Have students learn how weathering, erosion, and deposition reshape Earth’s surface!

🪨 Explore weathering & erosion — tap eachTry it

The Lesson · 5E Instructional Model (Engage · Explore · Explain · Elaborate · Evaluate)

50 minutes, five moves

Tap any phase to open the teacher moves and student actions.

1

Engage — Carving the Canyon

5 min

A river carved the Grand Canyon; rough rocks became smooth pebbles — how?

👩‍🏫 Teacher Moves

  • Show a canyon and pebbles.
  • Ask what shaped them.
  • Pose the question.

🎒 Student Actions

  • See them.
  • Wonder the force.
  • Predict the idea.
2

Explore — Explore the Processes

12 min

Students investigate.

👩‍🏫 Teacher Moves

  • Send students to the Surface Processes Explorer.
  • Note weathering vs. erosion.
  • Note deposition.

🎒 Student Actions

  • Tap each.
  • Note the difference.
  • Note deposition.
3

Explain — Break, Move, Drop

13 min

Students explain.

👩‍🏫 Teacher Moves

  • Explain weathering (break down).
  • Explain erosion (move).
  • Explain deposition (drop).

🎒 Student Actions

  • Explain weathering.
  • Explain erosion.
  • Explain deposition.
4

Elaborate — The Agents

13 min

Students elaborate.

👩‍🏫 Teacher Moves

  • Identify erosion agents (water, wind, ice).
  • Explain a landform.
  • Model erosion.

🎒 Student Actions

  • Identify agents.
  • Explain a landform.
  • Model it.
5

Evaluate — Evaluate

5 min

Students conclude.

👩‍🏫 Teacher Moves

  • Distinguish weathering and erosion.
  • Explain a landform.
  • Hand out the exit ticket.

🎒 Student Actions

  • Distinguish them.
  • Explain it.
  • Complete the exit ticket.
Standards Alignment

Built to the standards you report on

Aligned to the Next Generation Science Standards (Middle School Earth & Space Science).

NGSS
MS-ESS2-1

Develop a model to describe the cycling of Earth’s materials.

NGSS
MS-ESS2-2

Construct an explanation for how geoscience processes change Earth’s surface.

NGSS
MS-ESS2-4

Model the cycling of water driving surface processes.

NGSS
SEP-2

Developing and using models.

Differentiation

One lesson, every learner

Multilingual Learners

ELL / EMERGING READERS
  • Weathering/erosion picture cards.
  • Sentence frame: “Weathering breaks; erosion ___.”
  • Model with sand and water.

Support & Access

IEP / 504
  • Start with weathering vs. erosion.
  • Use clear photos.
  • Model with a stream table.

Stretch & Extend

GIFTED / EARLY FINISHERS
  • Identify erosion agents in landforms.
  • Explain glacial features.
  • Design an erosion-control plan.
Materials

What to gather

  • 📽️Projector / board
  • 🪨Rock samples
  • 💻The Surface Processes Explorer
  • 🌊A stream table
  • ✏️Pencils
  • 🎫Exit-ticket slips
Vocabulary

Key terms — hover for a quick definition

weatheringbreaking rock into smaller piecesmechanical weatheringphysical breakdown of rockchemical weatheringbreakdown by chemical changeerosionthe moving of weathered materialdepositionthe dropping of eroded materialsedimentsmall pieces of rock and soilglaciera slow-moving mass of icelandforma natural feature of Earth’s surface
Evaluate

Exit Ticket

Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.

QUESTION 1
What is the difference between weathering and erosion?
Weathering breaks rock down in place; erosion moves the pieces to a new location.
QUESTION 2
Name two agents of erosion.
Water, wind, ice (glaciers), or gravity.
QUESTION 3
What is deposition?
The dropping off of eroded material in a new place (building features like beaches and deltas).

Elaborate: model erosion.

Have students use a stream table (or a tray of sand and water) to model how flowing water erodes and deposits sediment, forming channels and deltas. A printable weathering-and-erosion sheet is in the Science library.

Study · Flashcards

Study the key terms

Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.

🃏 Weathering & ErosionFlip
Card 1
Term
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Meaning
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Nice work!

Practice · Quiz

Check your understanding

A quick self-check with instant feedback, drawn from this lesson’s key terms.

📝 Weathering & ErosionQuiz
Score: 0
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Question 1
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Practice · Worksheet

Printable worksheet

A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.

🖨️ Weathering & ErosionPrint
Name: ________________________
Date: ____________

Part A · Write the word that matches each meaning

Word bank: chemical weathering, deposition, erosion, glacier, landform, mechanical weathering, sediment, weathering
  1. physical breakdown of rock
  2. a natural feature of Earth’s surface
  3. small pieces of rock and soil
  4. a slow-moving mass of ice
  5. the dropping of eroded material
  6. the moving of weathered material
  7. breaking rock into smaller pieces
  8. breakdown by chemical change

Part B · Show what you learned

  1. What is the difference between weathering and erosion?
  2. Name two agents of erosion.
  3. What is deposition?
Answer key — Part A: 1) mechanical weathering · 2) landform · 3) sediment · 4) glacier · 5) deposition · 6) erosion · 7) weathering · 8) chemical weathering
Part B: 1) Weathering breaks rock down in place; erosion moves the pieces to a new location. 2) Water, wind, ice (glaciers), or gravity. 3) The dropping off of eroded material in a new place (building features like beaches and deltas).