What Is a Volcano?
Content Note: Volcanoes

Today’s lesson explores volcanoes — powerful natural events where melted rock (lava) comes out of the Earth. While we’ll focus on the science and how volcanoes shape the land, it’s important to know that real volcanic eruptions can sometimes be dangerous or frightening.

Goals
Level 1:

• Know that volcanoes are openings in the Earth where lava comes out
• Understand that lava is melted rock from deep underground
• Recognize that volcanoes are connected to moving plates

Level 2:

• Describe how volcanoes form at plate boundaries or hotspots
• Understand that magma rises from the mantle and erupts as lava
• Know that volcanoes can form mountains and change landscapes

Materials

• Picture books or images of volcanoes (real and illustrated)
• Volcano video clip (optional, brief and calm!)
• Baking soda, vinegar, dish soap, food coloring (optional eruption demo)
• Playdough or paper for drawing/building volcanoes
• Map or globe to show volcanic regions

Start with the information below, a video, or a book about volcanos
“Most volcanoes form where Earth’s plates meet. Magma (melted rock) pushes up from deep in the mantle and breaks through cracks in the crust. When it reaches the surface, it’s called lava. Volcanoes can erupt suddenly or slowly grow over time. Let’s learn how they work.”
https://kids.nationalgeographic.com/science/article/volcano  https://www.bbc.co.uk/bitesize/articles/zd9cxyc#zv62m39  

• Show real photos or illustrations of volcanoes
• Look at where volcanoes are on a map (Ring of Fire, etc.)
• Point out shield vs. cone volcano shapes (older learners) 

Ask:

• What does lava look like?
• Do all volcanoes look the same?
• Where does the lava come from?

Mini Eruption:

You’ll need:

• Small plastic cup or container
• Baking soda
• Vinegar
• Dish soap
• Red/orange food coloring (optional)
• Tray or large plate

Steps:

1. Place the container on the tray.
2. Add a spoonful of baking soda and a few drops of dish soap.
3. (Optional) Add food coloring.
4. Pour in vinegar and watch it bubble and erupt like lava!

Discussion:
“What do you see? What does it sound or smell like?”
 “What do you think caused this reaction? How is this like a real volcano?”

Creative Extensions 

• Draw or build a volcano with playdough.
• Label a volcano diagram: magma chamber, vent, lava, crater