Durable, clear plastic ruler feature beveled edges and black printed graduations. Flexible and shatter resistant. Calibrations on one side show inches with 1/16 graduations, the other side has centimeters with 1 millimeter graduations.
Chemicals: pH Indicator Solution Set (#BZ0003)
Celestron Prepared Slides with World of the Microscope Book (#44410B, 44411B, 44412B)
Chemicals: Activity Kit, Micro Crystal Growth (#BZ5009)
ABO/Rh Interactions Simulated Blood Typing Activity Kit (USA#BZ6551)
Usborne Science and Experiments, "The World of Microscope" Book, 48 pp
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