US$ 170.10
and oscillating springs
this apparatus captures oxygen output from an aquatic plant under light for plant-biology experiments
illustrating the high-ratio speed reduction and self-locking action of worm gearing
outfitting a bench with multiple support configurations
Soft-grade orange rubber tubing at 4 mm bore
Paleozoic Bivalve Fossil Replica, 3cm Type_Low Form and oscillating springsThree cm Paleozoic bivalve fossil replica demonstrates ancient marine shell anatomy for classroom paleontology without disturbing original specimens.
US$ 170.10
US$ 31.95
US$ 11.95
US$ 114.97
US$ 210.26
US$ 129.75