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Lesson 5 of 8 · Earth Systems

Lesson30 XP🌋 Rock Realm

How Tsunamis Form

🧪Lab Brief #5

Earth Systems.

🎯 Your mission

Understand the idea. Then look for it everywhere.

⚡ The twist

The slowest changes are the biggest ones.

🤯

Mind = Blown

🪨 Every grain of sand on every beach used to be a mountain.

🔮

Make a hypothesis first

Predict: which will erode faster?

What You'll Learn

Tsunamis are large ocean waves caused by underwater earthquakes, volcanic eruptions, or landslides. They travel fast across the ocean and grow very tall near shore.

Key Words

Tap a word to see its definition.

Steps

Step 1Read

Look at the vocabulary words and write a definition for each in your own words.

Step 2Do

Build a working model of a volcano using baking soda and vinegar. Observe the eruption and explain what causes real volcanic eruptions.

Step 3Observe

Compare the before and after states.

Step 4Record

Write your conclusion: did the results match your hypothesis? What would you change next time?

Check Your Understanding

Question 1

1 of 3

What causes earthquakes?

🌍

Where you see this in real life

Today's weather, tomorrow's beach, next century's coastline — all this.

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Stretch Challenge

Try this in real life this week.

Look at the sky for 5 minutes and try to predict tomorrow's weather.

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For the dinner table

What's the slowest change you can think of?

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Next Smart Experiment

We'll pick an experiment that matches exactly how you're thinking right now.

🌍Share card

Share this experiment

Send it to a parent who's looking for a 10-minute kitchen science win.

Ready?

How Tsunamis Form

Understand the idea. Then look for it everywhere.

Full screen — no distractions

🖨️

Checkout complete lesson on Earth Systems for 8th Grade

Get the full Earth Systems track as a printable PDF — all lessons, worksheets, and answer keys.

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How Tsunamis Form — Earth Systems | 8th Grade Science | LittleActivity