9 edition of Volcanoes (Let"s-Read-and-Find-Out Science 2) found in the catalog.
March 25, 2008 by Collins .
Written in English
|Contributions||Megan Lloyd (Illustrator)|
|The Physical Object|
|Number of Pages||40|
Their powerful eruptions tear magma into ash and dust-size fragments and blow them so far from the volcanic vent that almost no mountain is built up. Insets with volcano-related jokes and definitions are frequent. Packed with fun cartoon style illustrations and a great blend of fact and entertainment. This generated the loudest sound reported in history. When the magma reaches the conduits the pressure is released and the gases explode, like soda spewing out of a soda can that you shook up and opened suddenly, according to San Diego State University. The area along this large arc is called the Ring of Fire because many active volcanoes are found along it.
In addition to the kind of eruption, scientists classify volcanoes according to how often they erupt. The first volcanic eruption happened before the first human existed. Airborne fragments of lava, called tephra, are ejected from a single vent. Pumice is sometimes light enough to float on water. Pressure builds in the magma chamber as gases, under immense heat and pressure, are dissolved in the liquid rock. Underlying this is an even more fundamental question and a central theme of this book: What causes the Earth's rocks to melt?
The average cinder cone is about 2, feet meters wide at the base and feet meters high. Craters are simply eruption vents--the tops of magma conduits. Stratovolcanoes result from a conduit system of vents leading from a magma reservoir beneath the surface. Shield volcanoes are huge, gently sloping volcanoes built of very thin lava spreading out in all directions from a central vent.
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Because they form in a system of underground conduits, stratovolcanoes may blow out the sides of the cone as well as the summit crater. Scientists have discovered this type of volcanic activity in the Atlantic Ocean along the Mid-Atlantic Ridge, an undersea mountain range that marks the boundary between huge spreading plates.
Still, this is a useful and attractive addition to science collections, as it is likely to become a favorite choice of young scientists. All in all, a great reader for your classroom library! Well, apart from my name starting with V, we have lots of volcanoes in New Zealand. Carpet of Ash Volcanic eruptions can cause damage hundreds of miles away.
Volcanoes or the evidence of volcanoes has been located almost everywhere on the Earth's surface. Why V for Volcanoes? Praise for Volcanoes: "Twenty-five altogether stunning full-color photos and a clear, concise text are melded into a masterful introduction to volcanoes Some gases produced, such as chlorine and fluorine, can be very deadly.
Lava and Lava Flows During most volcano eruptions, lava flows out of vents as a red stream of hot, molten rock. For example, sensors on satellites can detect the warming of volcanoes, sometimes even before they erupt.
After that time, the lava may come out but it usually has very little energy, so it is not very dangerous. Some, like Mount St. Maui, the legend goes, sleeps in a deep cave and, when he turns while dreaming, and earthquake occurs on the land above.
Known as ash flows, they can move along the ground at hundreds of miles per hour, sweeping down slopes, through valleys, and over hills. There are 50 volcanic mountains in my home town of Auckland.
Find our magazine in all good newsagents, or become a subscriber and have it delivered to your door! Sigurdsson has woven a superbly documented and wonderfully informative chronical of volcanic phenomena and theory.
I have heard that oceanic volcanoes can release strong acid water, which is harmful to sea life. Packed with fun cartoon style illustrations and a great blend of fact and entertainment. Details are provided about recent eruptions such as those in… This book combines many elements that children find fascinating-fire, rock, explosions.
Heat and Gas Heat and gas are two important products of a volcanic eruption. In addition to building various kinds of volcanoes one is made of chocolate, marshmallows and rice krispies!
Ancient lava flows have been found in many places where there are no volcanoes today, and most of the deep ocean floors are made up of thick layers of lava underneath much thinner layers of sediment. Volcanic plugs: When magma solidifies in the fissure of a volcano the hard dense rock may form a " neck " that remains when softer surrounding rock has been eroded away, according to the U.
Zsiray, Jr. The mountain is significant as the incredibly dominant visual element in the Northern California landscape. Helens, explode. The eruption released an avalanche of hot ash, gas, steam, and rocks that mowed down giant trees up to 15 miles 24 kilometers away. When scoria is full of holes, formed as a result of gas bubbles in the lava, it is called pumice.
We need more chances to test our ideas or hypotheses.May 23, · My 3 year old is fascinated with volcanos, and this was the only children's book at the store on the subject, so I bought it. The book is definately too advanced for him, but he loves it anyway. The photos are excellent and the book is very informative.
It is great for elementary school children that are learning about volcanos and science/5. An article about volcanoes from The New Book of Knowledge. Scholastic News Online.
Scholastic News Online is a free resource with breaking news and highlights from the print magazine. Available for grades 1. Volcanoes are a key part of the Earth system, and open a window into the inner workings of the planet. More than a dozen volcanoes are usually erupting on Earth at any given time.
Washington, DC: The National Academies Press.
doi: / Show this book's table of contents, where you can jump to any chapter by name. This is a short, informative book about volcanoes, designed for young school-age children. The narrative is interesting and the text is paired with many colorful photographs.
Our youngest brought this book home from her second grade class to practice her reading and comprehension of nonfiction material/5. Volcanoes are scattered across the planet.
About 1, active volcanoes can be found around the world, but countless ones are on the ocean floor. Most volcanoes – whether on land or underwater – are located where tectonic plates meet.
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