The Magic School Bus Blows Its Top

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Field Trip Notes

Somethings missing from the classroom globe: an island so new it hasnt been discovered yet! Where will the kids find the island? What will they name it? IN their search, the kids spot a mountain underwater and dive down to the ocean floor. They squeeze between two plates of crust and discover that the mountain is an underwater volcano - and theyre inside it, about to explode! They figure out that when the magma explodes into the air, it will cool and harden on top of the volcano. Eventually, the volcanos top will stick out of the water and form the new island. Now, if only Dorothy Ann and Carlos can agree on a name for the island!

Eruption

Going Hands-On

Time: 30-40 minutes
Group Size: Four

Ms. Frizzles class finds a volcano underwater. Your students can make models of underwater volcanoes, and then create their own eruptions.

What You Need

• 1-pound box of baking soda
• 12-ounce jar of vinegar
• Small bottle of red food coloring
• Copies of ERUPTION!
• Sheets of newspaper

For each group:

• 1 teaspoon
• 1 shoe box
• 2 fist-sized balls of modeling clay
• (Alternative: aluminum foil)

Talk About It

Ask children: How are islands created? Why don’t they float away in the ocean currents?

What To Do

• Cover desks with newspaper. Direct groups to build models showing how an underwater volcano reaches from the ocean floor to above the water’s surface (see example below). Ask: Where would the crust be in your model? (below volcano) Where would magma come from? (pushes up between crust pieces)
• After groups have built models, ask: What do you think causes a volcano to erupt? (pressure of magma gases) 
• Help groups create “eruptions.” Ask: What do you think caused the “lava” (what magma is called once it explodes into the air and loses gases) to flow? (Gas created by mixing baking soda with vinegar pushed up.) How are your eruptions and real eruptions alike? (gases giving a push) How are they different?  

Next Stop 

Encourage students to use crayons, markers, modeling clay, and construction paper to add details above and below the water’s surface.

The Magic School Bus Goes Upstream
The Magic School Bus becomes a salmon looking for its tiny home stream. How? By knowing the scent and taste of home. Your kids discover that a homey smell can lead them, too.

Global Warming Report
The United Nations released a report summary on climate change last week. The long-awaited document, which was released in Paris, France, forecast a dim future for planet Earth, warning that global warming is getting worse.

Make a Volcano Science Experiment
This easy kitchen experiment is a blast! Your child can make a volcano and learn about chemical reactions. All this hands-on science activity takes is some simple household items.

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