New, hands-on science demos teach young students how volcanoes 'blow their tops,' spew lava

A popular volcano demonstration in grade school science class rivets students' attention as it spews bubbly liquid over a tabletop, but it comes up short in explaining all the ways that volcanoes form and evolve.

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<p><a href="http://www.physorg.com/news80912919.html">New, hands-on science demos teach young students how volcanoes 'blow their tops,' spew lava</a></p> <p>A popular volcano demonstration in grade school science class rivets students' attention as it spews bubbly liquid over a tabletop, but it comes up short in explaining all the ways that volcanoes form and evolve.</p>