Ages: 8-10
Read time: 15-30 mins
AR LEVEL: 4.3
LEXILE©: 650L
Engineered by Nature: Cave of Crystals
In a very deep cave in Mexico, massive crystals grow much larger than a human. Cave of Crystals looks at when and how these crystals formed and what the future...
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Ages: 8-10
Read time: 15-30 mins
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