American Educational Igneous Rock Collection High Voltage Differential Probe

High Voltage Differential Probe

making it easy to trace blood flow through the chambers

Lesson plans

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American Educational Igneous Rock Collection High Voltage Differential ProbeIgneous rock collection for geological study 15 intrusive and extrusive igneous rock specimens for detailed examination Number coded with key sheet for identification Compartmented tray for display and storage Specimens measure 1 1 2 x 1 1 2 inches (L x W) The American Educational 2221 igneous rock collection is used for geological study, and has 15 intrusive and extrusive igneous rock specimens for detailed examination. The collection has a color