Description
and 500mm focal lengths for comparative refraction experiments
9-inch sun and eight movable planets
a distinctive density reference against the lighter aluminum and heavier steel cylinders
this demonstration electroscope detects and visually quantifies the magnitude of static charges
Four-cube specific gravity set in brass
Large Frog Dissection Anatomical Model, Numbered Material_Stainless Steel and 500mm focal lengths forLarge frog dissection model with numbered structures reveals digestive, circulatory, and reproductive systems for amphibian anatomy teaching.
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