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Density ID Set
A set of 15 samples of different materials used to challenge students to identify materials based on measurement of their density. For some specimens this will be straightforward. In other cases, it will lead to a discussion of uncertainty in measurements and data, and to an awareness that different materials may have nearly the same density.
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pinosaurus sp. (Cretaceous) Fossil Specimen
Well-preserved individual teeth from what may be the largest known carnivorous dinosaur found to date in the fossil record. Exceptional quality and detail. Average size: 1 1/2" L x 1/2" W. Morocco.
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General Plant Slide Set
An Excellent Collection of the Most Studied Specimens in the Plant Kingdom
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TeacherGeek Build-A-Boat Activity
Use common materials to explore buoyancy and power.
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Accessories for Hand-Cranked Van de Graaff Generator
Educational Materials, Accessories, Application: Physics, Hand-crank Van de Graaff generator, replacement belt set
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Wards® STEM Investigations: Create Your Own Power
Set up an electrochemical cell using a variety of materials.
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New York State Living Environment: Relationships and Biodiversity Lab
Learn about Structures within a Plant Stem
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Innovating Science® Engineer and Explore Materials for Prothetics
Learn about the materials that biomedical engineers use when creating prosthetic devices.

