Thursday, November 14, 2013

Volcanic Ash

We just learned about the rocks that are thrown from volcanoes called Tephra

Volcanic Ash is the smoky cloud that comes up from a volcano when it erupts.
Even though it just looks like smoke or steam,
the ash is actually made up of tiny bits of rock that are floating through the air.

mount redoubt volcanic ash
(from: wikipedia - volcanic ash)

Volcanic Ash isn't like lava where it will melt everything in it's path,
but it can shoot out and cover areas for almost a thousand miles.
It can make animals or people sick, and just make a big mess covering everything up in a black mush.

Kid Facts - Blast from the past: USB