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Published in 1998
"Here is the original Virtual Cave, devoted to the astounding variety of nature's handiwork found in solution caves, those dissolved out of solid rock by acidic waters. Most solution caves are found in carbonate rocks (limestone, dolomite, or marble) or gypsum. They may occur in sandstones, since...
Grade Level   3 4 5 6 7 8 9 10
Teaching Media Virtual Field Trips
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