Earth's Shifting Forces

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Curriculum Specification

Subject: Geography
Year Group: Year 6 (Ages 10-11)
Curriculum Area: UK National Curriculum for Geography – Physical Geography
Learning Focus: Understanding how the movement of tectonic plates leads to the formation of geological features, earthquakes, and tsunamis.
Key Skills:

• Understanding plate tectonics and their impact
• Exploring how and why earthquakes and tsunamis occur
• Analysing real-life case studies

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Lesson Objectives

By the end of this 60-minute lesson, students will:

1. Explain how the movement of tectonic plates creates mountains, volcanoes, and ocean trenches.
2. Describe how and why earthquakes and tsunamis occur.
3. Apply knowledge through a hands-on activity and discussion of a real-world disaster case study.

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Lesson Breakdown (60 Minutes)

1. Introduction – The Power Beneath Us (10 mins)

• Begin with a quick thought experiment: “Imagine the ground beneath your feet is secretly moving. What do you think might happen because of that?”
• Show a short animation (without sound) of tectonic plates shifting (use an interactive board where possible).
• Ask: Have you ever heard of an earthquake or tsunami? What do you already know? (Encourage a few responses).
• Briefly explain the Earth's structure (crust, mantle, core) and introduce tectonic plates in simple terms.

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2. The Science of Tectonic Plates (15 mins)

• Use a sliced chocolate bar (e.g. a Twix or KitKat) as a metaphor for Earth's crust:
  • Top layer = Earth's crust.
  • Filling = Mantle (moves and shifts).
  • Demonstrate by pushing/pulling pieces apart to mimic plate movements.
• Explain three types of plate movements using hand motions:
  • Divergent boundaries (plates move apart – creates volcanoes and mid-ocean ridges).
  • Convergent boundaries (plates collide – forms mountains and earthquakes).
  • Transform boundaries (plates slide past – earthquakes along faults like the San Andreas Fault).

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3. Earthquakes & Tsunamis – A Massive Impact (15 mins)

• Mini Experiment: Cardboard & Marbles
  • Lay two pieces of cardboard flat together—these represent tectonic plates.
  • Place a small marble on top—this represents a city or building.
  • Slowly push one cardboard piece forward while keeping the other still.
  • The marble will likely fall—this visually demonstrates how sudden plate movements cause earthquakes that impact structures.
• Tsunami Demonstration (Simple Water Test)
  • Fill a shallow tray with water.
  • Drop a small weight or press down on one edge—observe the sudden waves forming (simulating a tsunami caused by an underwater earthquake).

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4. Real-World Application – UK Case Study (10 mins)

While the UK is not in a major earthquake zone, small quakes do occur. Discuss:

• The Dover Straits Earthquake (1580) – one of the strongest quakes in UK history.
• The Lisbon Earthquake & Tsunami (1755) – A famous historical tsunami that sent waves to the Cornish coast.
• Ask: Could an earthquake or tsunami ever impact the UK in the future? Why or why not?

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5. Creative Challenge & Reflection (10 mins)

• Quick-Fire Questions (students discuss in pairs before answering aloud):
  1. What happens when two tectonic plates collide?
  2. Why do tsunamis occur after some earthquakes?
  3. Which parts of the world experience the most earthquakes and why?
• Creative Task:
  • In pairs, design a building that could survive an earthquake.
  • They can sketch it or describe it – thinking about flexible materials, deep foundations, or special shapes.
  • A few pairs share their ideas with the class.

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Assessment & Homework

Assessment (During Lesson)

• Students share responses to quick-fire questions.
• Check understanding through discussions and the building design task.

Optional Homework Task

• Research a famous earthquake or tsunami (e.g. the 2011 Japan Earthquake) and write five facts about it.

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Resources Needed

✔ A chocolate bar (e.g. Twix) to demonstrate plate movements
✔ Two pieces of cardboard & a marble (earthquake effect)
✔ A tray of water & a small weight (tsunami effect)
✔ Whiteboard and markers
✔ A world map (showing tectonic plates and earthquake zones)

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Final Thought for Students

"Even though tectonic plates move very slowly, they have shaped our entire planet. Without them, we wouldn’t have mountains, volcanoes, or even continents in their current form! How different would Earth be if these powerful forces didn’t exist?"

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Teacher Notes & Adaptations

• For high-ability students: Ask them to compare the Ring of Fire (Pacific Plate) to earthquake activity in Europe.
• For SEND students: Provide a printed diagram of tectonic plates with colour-coded boundaries for easier understanding.
• Classroom no-contact? Replace the hands-on activities with interactive quizzes or YouTube videos on tectonic movement.

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This lesson delivers engaging demonstrations while keeping the learning age-appropriate, tactile, and thought-provoking. It makes abstract geographical concepts visual and memorable for Year 6 learners.