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Volcanoes

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Volcanoes

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    15. This ‘conveyor belt’ animation is a simplified version of the formation of hot spot volcanoes/ chains of islands. Internet Links – US Geological Survey Hawaiian volcanoes http://hvo.wr.usgs.gov/ While all care is taken to ensure web links contain useful information, Boardworks does not take responsibility for the content or accuracy of external web sites.This ‘conveyor belt’ animation is a simplified version of the formation of hot spot volcanoes/ chains of islands. Internet Links – US Geological Survey Hawaiian volcanoes http://hvo.wr.usgs.gov/ While all care is taken to ensure web links contain useful information, Boardworks does not take responsibility for the content or accuracy of external web sites.

    16. While all care is taken to ensure web links contain useful information, Boardworks does not take responsibility for the content or accuracy of external web sites.While all care is taken to ensure web links contain useful information, Boardworks does not take responsibility for the content or accuracy of external web sites.

    18. Animation showing the Mt St Helen’s eruption with text.Animation showing the Mt St Helen’s eruption with text.

    19. Interactive map: Redrawn map, showing compass point, scale line, Mt St Helens, North and South Toutle rivers and area of total destruction. Buttons (North Toutle, trees flattened, Portland, Mt St Helens, Spirit Lake, ash cloud) reveal extra information when clicked…e.g. click on North Toutle button and ‘mudflows 200m thick in the upper Toutle valleys’ appears. Interactive map: Redrawn map, showing compass point, scale line, Mt St Helens, North and South Toutle rivers and area of total destruction. Buttons (North Toutle, trees flattened, Portland, Mt St Helens, Spirit Lake, ash cloud) reveal extra information when clicked…e.g. click on North Toutle button and ‘mudflows 200m thick in the upper Toutle valleys’ appears.

    25. While all care is taken to ensure web links contain useful information, Boardworks does not take responsibility for the content or accuracy of external web sites.While all care is taken to ensure web links contain useful information, Boardworks does not take responsibility for the content or accuracy of external web sites.

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