Volcanoes and Magma
simulate the noise volcano explosions between 45% SiO2- 75% SiO2
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fonte: @edisonmariotti #edisonmariotti http://www.alaskamuseum.org/content/about-us
A volcano is an opening where magma erupts onto the surface as lava after rising from deep within the Earth. Not all magma is the same. Some magma contains as much as 75% silica (SiO2), whereas other magma contains as little as about 50%. The more silica in a magma, the higher its viscosity, or resistance to flow. Viscosity controls the type of volcano that forms. Eruptions of high-viscosity magma build very steep-sided lava domes. Low-viscosity magma produces cinder cones and thin sheet-like lava flows, and intermediate-viscosity magma creates moderately steep mountains called stratovolcanoes. (Source: USGS)
Learn more about volcanoes in Alaska at the Alaska Volcano Observatory website.
About us
The non-profit Alaska Museum of Science & Nature fills a special need for science education in Alaska. No other organization in the state educates or exhibits exclusively Alaska's unique science.
In 1989, two University of Alaska, Anchorage professors began a collaborative effort to establish a scientific natural history Museum, a Museum committed only to science. The Museum opened in Eagle River, Alaska in May of 1994.
From the outset, the Museum has energetically pursued it's mission to study and exhibit natural history materials relating to Alaska's natural history and to promote and develop educational programs which benefit students and enrich the curricula of schools and universities in Alaska. While located in Eagle River, the museum served over 4,000 local Alaskans and visitors annually.
In 2004, with the support of Anchorage Neighborhood Housing Services, Inc., the Anchorage Assembly, and Mayor Begich, a combined Community Development Block Grant and HUD Grant was obtained for the purchase of a 12,000 square foot building at 201 N. Bragaw. This new home meant a significant increase in the exhibit space and our ability to offer community programs and services. Today, the Museum sees over 18,000 visitors annually. In addition to displaying exciting, hands on natural science exhibits, the Museum provides regular science education for school-aged children and adults.
Turning a boat warehouse into a Museum has been a fun, creative process. Significant changes to the interior were required before the Museum could open in 2005. Renovation of the building is still underway. The Museum has renovated the restrooms, the floors, lighting as well as winterized. In 2013 artist James Havens painted a wrap around mural on our exterior. In 2014 the Museum renovated the exterior parking lot and enclosed patio spaces and will be exhibiting on the patio summer and winter!
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