As a part of their Tinker class, our students had the opportunity to build a shield, cinder cone, composite (strato), and/or lava dome volcanoes out of a building material of their choice! They were all smiles to show off their creations.
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We recently investigated the relationship between lava viscosity and the shape of a volcano as well as how it explodes! We learned that shield volcanoes (Like Hawaii's Kilauea) must have thin, low-viscosity lava because it bubbles easily and spreads very far. In contrast, composite volcanoes (like Mt. St. Helen's) must have more viscous lava because they build up more pressure in the lava when you try to blow bubbles, and the lava isn't as runny allowing it to pile up higher! |
Mrs. BrownScience Teacher, ArchivesCategories |