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  • On August 27th 1883, after a long period of relative quiet, the Krakatoa volcano located between Java and Sumatra, roared to live. During the eruption, the island mountain blew itself apart, killing over 30,000 people in the process. Today, Krakatoa is back, but in a much smaller way.

    Krakatoa, the Monster Volcano

    Krakatoa, the Monster Volcano

    by Harry Nielsen0

  • In terms of magnitude and damage, the Valentine earthquake is the largest recorded earthquake to have occurred in the state of Texas.

    The 1931 Valentine Earthquake

    The 1931 Valentine Earthquake

    by Liz Hardin0

  • This article describes the processes that are involved in the formation of igneous rocks and the factors that influence the composition of magma.

    How Do Igneous Rocks Form?

    How Do Igneous Rocks Form?

    by Melissa Clason1

  • This hub is solely written bearing in mind helping school kids with their assignments. I have written down briefly with illustrations where possible, what mountains are, how they are formed, the types of mountains and how you identify the different types of mountains. I hope you enjoy reading this, and it helps you with your requirements.

    Types and How Mountains are Formed – For kids

    Types and How Mountains are Formed – For kids

    by livingsta265

  • Where are the world's supervolcanoes? The Western United States, Italy, New Zealand, and Asia all contain volcanoes capable of catastrophic eruptions.

    Supervolcanoes Around the World

    Supervolcanoes Around the World

    by Leah Lefler66

  • This article looks at ten sandy beaches of extraordinary colour, what they are composed of and how they are formed, with illustrations of all ten

    10 Beaches of Unusual Colour

    10 Beaches of Unusual Colour

    by Greensleeves Hubs16

  • The idea of going to the centre of the Earth was brought to prominence in Jules Verne's classic 1884 Sci-Fi novel 'Journey to the Centre of the Earth, but how far have we gone towards this goal?

    The Deepest Hole in the Earth - Kola Superbole Hole

    The Deepest Hole in the Earth - Kola Superbole Hole

    by Ian McKay2

  • This article explains the science of how rainforests are formed, and explains their role in Earth's ecology and environmental health, as well as human impact on rainforests and their projected future.

    What Factors Control the Location of Rainforests?

    What Factors Control the Location of Rainforests?

    by Melissa Clason3

  • At any point on the earth's surface, if you dig down far enough, you will come to rock. Rocks are the building blocks of the earth's crust. There are many different types of rock, and they are all composed of one or more minerals. This article explores 10 fascinating facts about rocks and minerals.

    Top 10 Interesting and Fun Facts About Rocks, Minerals, and Crystals

    Top 10 Interesting and Fun Facts About Rocks, Minerals, and Crystals

    by Amanda Littlejohn6

  • This guide will teach you how to estimate the classification of a soil and how to describe its characteristics, based on the Unified Soil Classification System. It is intended for use in construction materials testing but can be useful for anyone who works with soil.

    Visual-Manual Soil Classification and Description

    Visual-Manual Soil Classification and Description

    by Melissa Clason0

  • Hydraulic fracturing is a type of drilling and mining for oil and natural gas. Fracking wells are typically built on shale deposits that contain significant reserves of natural gas. Fracking may be causing earthquakes, and uses chemicals that are toxic.

    Hydraulic Fracturing (Fracking)

    Hydraulic Fracturing (Fracking)

    by Liz Hardin3

  • The Bolshaya Udina volcano in Siberia is coming back to life. This Russian volcano situated along the dangerous Ring of Fire has shown so much seismic activity over the past few years that its classification has changed from extinct to active. Some scientists think that it could erupt at any time.

    Russian Volcanoes on the Ring of Fire

    Russian Volcanoes on the Ring of Fire

    by Harry Nielsen0

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