Lesson 2 of 4 · Earth's History
Lesson⭐ 30 XP🌋 Rock RealmHow Volcanoes Form
Earth's History.
🎯 Your mission
Learn the rule. Then catch nature using it.
⚡ The twist
Today's mountain was yesterday's ocean floor.
Mind = Blown
🪨 Every grain of sand on every beach used to be a mountain.
Make a hypothesis first
Guess: where will the water go first?
What You'll Learn
Volcanoes form where magma from the mantle reaches Earth's surface. Shield volcanoes have gentle slopes with flowing lava, while composite volcanoes are steep with explosive eruptions.
Key Words
Tap a word to see its definition.
Steps
Look at the vocabulary words and write a definition for each in your own words.
Build a working model of a volcano using baking soda and vinegar. Observe the eruption and explain what causes real volcanic eruptions.
Compare the before and after states.
Write your conclusion: did the results match your hypothesis? What would you change next time?
Check Your Understanding
Question 1
1 of 3What is a volcano?
Where you see this in real life
This is shaping the ground you walk on, slowly, every single day.
Stretch Challenge
Try this in real life this week.
Find a rock outside and try to guess how old it is.
For the dinner table
“What's the slowest change you can think of?”
Next Smart Experiment
We'll pick an experiment that matches exactly how you're thinking right now.
Share this experiment
Send it to a parent who's looking for a 10-minute kitchen science win.
Ready?
How Volcanoes Form
Learn the rule. Then catch nature using it.
Full screen — no distractions
Checkout complete lesson on Earth's History for 6th Grade
Get the full Earth's History track as a printable PDF — all lessons, worksheets, and answer keys.
