Earthquakes and Tsunamis

Active learning helps students grasp the dynamic forces behind earthquakes and tsunamis by making abstract concepts tangible. Moving beyond diagrams and lectures, students build models, simulate events, and discuss real-world consequences, which deepens their understanding of cause and effect in geologic processes.

• Year 3
• Geography
• 3 activities
• 15 min–45 min

Learning Objectives

1. Explain the movement of tectonic plates and their role in causing earthquakes.
2. Identify the key features of an earthquake, including the epicenter and seismic waves.
3. Compare and contrast the formation and impact of earthquakes and tsunamis.
4. Design a simple model of a building that can withstand simulated seismic forces.
5. Analyze the challenges faced by communities in the aftermath of a major earthquake or tsunami.

Inquiry Circle

⏱ 45 min·Small Groups

Inquiry Circle: The Shake Table Challenge

In small groups, students build towers using marshmallows and cocktail sticks. They place their towers on a tray of jelly (the 'shake table') and gently wobble it. They must then redesign their towers with 'cross-bracing' to see if they can survive a bigger 'quake'.

Prepare & details

How can humans design buildings to survive an earthquake?

Facilitation Tip: During The Shake Table Challenge, circulate with a checklist to note which student teams adjust their building designs after initial test results.

Setup: Groups at tables with access to source materials

Materials: Source material collection, Inquiry cycle worksheet, Question generation protocol, Findings presentation template

• Analyze
• Evaluate
• Create
• Self-Management
• Self-Awareness

Simulation Game

⏱ 30 min·Pairs

Simulation Game: Tsunami Warning!

Students are given a map of the Indian Ocean with an earthquake marked. They are told the speed of a tsunami wave and must calculate how long different coastal cities have to evacuate. They must then write a 30-second 'emergency broadcast' for the radio.

Prepare & details

What is the connection between underwater earthquakes and tsunamis?

Facilitation Tip: In Tsunami Warning!, ask student observers to time how long it takes the wave to travel across the tray to reinforce scale and speed concepts.

Setup: Flexible space for group stations

Materials: Role cards with goals/resources, Game currency or tokens, Round tracker

• Apply
• Analyze
• Evaluate
• Create
• Social Awareness
• Decision-Making

Think-Pair-Share

⏱ 15 min·Pairs

Think-Pair-Share: Why do some buildings fall?

Show photos of two buildings after an earthquake: one standing and one collapsed. Pairs discuss what might be different about them (materials, foundations, age). Share ideas about how humans can use geography and engineering to stay safe.

Prepare & details

How do communities recover after a major seismic event?

Facilitation Tip: For Why do some buildings fall?, provide sentence stems like 'The building fell because...' to scaffold explanations during peer discussions.

Setup: Standard classroom seating; students turn to a neighbor

Materials: Discussion prompt (projected or printed), Optional: recording sheet for pairs

• Understand
• Apply
• Analyze
• Self-Awareness
• Relationship Skills

Teaching This Topic

Start with the Shake Table Challenge to build intuition about energy transfer during earthquakes. Follow with the water tray tsunami demo to contrast wave behavior with shaking. Avoid overemphasizing Hollywood-style destruction, as it reinforces misconceptions about ground cracks or surfing waves. Research shows that hands-on modeling, paired with focused discussion, improves conceptual change more than lecture alone.

What to Expect

Successful learning looks like students confidently explaining how tectonic plates interact, designing structures to withstand shaking, and clearly differentiating between seismic waves and tsunami waves. They should use correct terminology and connect their observations to larger safety and preparedness ideas.

Watch Out for These Misconceptions

Common Misconception

During The Shake Table Challenge, watch for students who describe the earthquake as a crack opening in the ground.

What to Teach Instead

Pause the activity and have students examine photos of real earthquake damage on their phones or tablets. Ask them to point out what they see—cracked roads, tilted buildings—and relate these to shaking rather than splitting.

Common Misconception

During Tsunami Warning!, listen for students who describe a tsunami as a tall curling wave like in surfing videos.

What to Teach Instead

Hold up the water tray and tip it slowly to show that the wave is a wide, fast-moving rise in water level. Ask students to compare it to a regular ocean wave and explain why the height isn't the main danger.

Assessment Ideas

Exit Ticket

After The Shake Table Challenge, give students a card to sketch the difference between an earthquake's focus and epicenter and write one sentence explaining how an underwater earthquake can cause a tsunami.

Quick Check

During Why do some buildings fall?, ask pairs to list three ways buildings can be made more resistant to earthquakes and circulate to check their reasoning and accuracy.

Discussion Prompt

After Tsunami Warning!, pose the question: 'Imagine your town experienced a major earthquake. What are the first three things emergency services would need to do to help people?' Facilitate a class discussion, guiding students to consider immediate needs like shelter, medical aid, and safety.

Extensions & Scaffolding

• Challenge: Ask students to design a structure that survives both the shake table and a simulated tsunami wave in a larger tank.
• Scaffolding: Provide pre-cut straws, cardboard bases, and masking tape for teams that need simpler materials to begin.
• Deeper exploration: Have students research how early warning systems use seismic sensors to predict tsunamis and present their findings to the class.

Key Vocabulary

Tectonic Plates	Large, rigid slabs of rock that make up the Earth's outer shell, constantly moving and interacting with each other.
Epicenter	The point on the Earth's surface directly above the focus, where an earthquake's seismic waves are strongest.
Seismic Waves	Vibrations that travel through the Earth's layers as a result of an earthquake, causing the ground to shake.
Tsunami	A series of large ocean waves caused by underwater earthquakes, volcanic eruptions, or landslides, which can cause widespread flooding.