what is a volcano for children

introduction to volcanoesWhy do volcanoes eruptKinds of volcanoesTypes of volcano eruptionVolcanic eruptions in the seaParts of a volcanoEffects of a volcanoimportant volcano words




Volcanic eruptions in the sea

Though ocean floors are thousands of miles below the water surface, they also experience many volcanic activities.

In shallow waters, eruptions tend to involve cold water coming into contact with extremely hot lava from beneath that ocean floor. The steam escapes high above the water surface. If the eruptions occur deeper in the ocean, the weight and pressure of the water above it suppresses its expulsion and keeps it mild. This means the ocean floor is not necessarily affected in any way.
volcanic eruption in the sea

Sometimes, lava which erupts into shallow water cools off very quickly and breaks down into débris or sand. It is believed that Hawaii’s black sands beaches are a result of lava interacting with sea water.

Sometimes, lava settles on the water in the form of débris, which is carried farther away by ocean currents.

volcano factDid you know?
Volcanic ash is very good for soil, so plants grow quickly and strong after a volcano.

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