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This picture shows what a lava tube looks like from an airplane. Can you see where the tubes are?

Caves are formed from flowing lava in the following way:

Step One: A volcano erupts.

Step Two: Lava flows out across the land.

Step Three: The surface of the lava cools more quickly than the lava underneath, forming a solid surface, which will become the lava tube roof.

Step Four: The volcano stops erupting.

Step Five: The hot, molten lava drains from under the cooler solid surface lava.

Step Six: An empty tube (called a lava tube) is left behind.

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This picture shows what a lava tube looks like from the inside!

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And this picture shows what a lavasicle looks like, just look what happens when lava and water work together!

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