Sunday, November 25, 2007

Lava Day

Today was so cool. We got to see lava made. We were at Bishop Museum in the science center. They put lava rock into a kiln until it melted. When it was poured out, it was the consistency of honey and bright orange from the heat. It quickly cooled to black and began to crack like glass. In fact it was very smooth and shiny like glass. Supposedly this could only be achieved in nature if a volcano erupted through a glacier. At this point it was supposedly still about 800 to 900 degrees Fahrenheit (it started out at just under 3000 degrees). According to the docent it would take 3 to 4 hours to cool to room temperature.

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At 14 December, 2007 14:53, Blogger Jennie said...

That is extremely cool.


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