Volcanoes are grouped into four types: cinder cones, composite volcanoes, shield volcanoes and lava volcanoes. Cinder cones are circular or oval cones made up of small fragments of lava from a single ...

You get a double feature for the latest Annotated Volcano. Why two volcanoes? I wanted to explain the difference between two different shapes of volcanoes: the archetype stratovolcano and the massive ...

Editor’s note: The KOIN 6 Weather team is presenting weather and science lessons to help serve our teachers and students. Click here for more lessons. PORTLAND, Ore. (KOIN) – The mighty mountains of ...

Volcanoes repeatedly remind people of Earth's potential for violence. Since 1700, volcanic eruptions have killed more than 250,000 people and devastated scores of communities. What causes these ...

Heather Handley receives funding from the Australian Research Council. She is affiliated with WOMEESA. This is an article from Curious Kids, a series for children. The Conversation is asking kids to ...

Earth has four main layers. Earth’s innermost layer is a solid core made from iron. It’s outer core is a molten mixture of iron and nickel. These layers are surrounded by Earth’s mantle, the mushy ...

Lava is molten rock from a volcano that reaches the Earth’s surface. Liquid rock below the Earth’s surface is referred to as magma. More than 50% of the world’s active volcanoes above sea level ...