Description
Student pulley demonstration set with a range of pulleys for mechanical-advantage and force-multiplication comparisons
Metamorphic rocks containing different rock specimens supplied in carboard box
Two-ohm metal-film resistance unit at plus-or-minus 1% accuracy with a 1
sized for middle-school anatomy teaching
DNA Double Helix Rotating Molecular Model with Stand, 18 inch Subcategory_Spring Scales Student pulley demonstration set withRotating DNA double helix model demonstrates base pair complementarity, major grooves, and molecular structure for genetics and biochemistry instruction.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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