We also looked at volcanic rock. Two students had gone to Hawaii at the beginning of the year and brought us back a lava rock!
We were also lucky enough to have volcanic ash from Mt. Saint Helens! The children were all able to feel the ash in their hands.
More rocks from volcanoes!
And... very exciting! This child had heard about the "ring of fire" (and he also likes Johnny Cash!) and was very motivated to make his own!