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"Shiv Dial Sud & Sons"
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Wave Form Helix - Metal
This hands-on apparatus demonstrates transverse and longitudinal waves.
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Ward's® Build Your Own Insect Net
Customize your own insect net, or replace existing parts.
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D.T. Buddy Delivery Tube Hand Saver
The perfect hand-saving tool for inserting glass tubing into stoppers!
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Ward's® Microfossil Slides
Perfect mount to observe microfossils under the microscope.
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DIY Moon Phases Kit
Define, ideate, build, and test a prototype that teaches moon phases and science investigation skills.
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Supertek® Equal Mass Density Cubes
Demonstrate the inverse relationship between density and volume.
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Supertek® Monkey and Hunter Demonstration
Demonstrate the independence of the horizontal and vertical components of projectile motion.
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Lead, 20 mm x 125 mm
CAS Number: 7439-92-1
Formula Weight: 207.19
Formula: Pb
Hazard Info: Toxic
Density (g/mL): 11.34
Boiling Point (°C): 1753
Freezing Point (°C): 327
Solubility: Dilute Nitric Acid
Shelf Life (months): 36
Storage: Green
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Brass, 22 mm x 127 mm
CAS Number: Mixture
Formula Weight: Mixture
Formula: Mixture
Density (g/mL): 8.45-8.86
Freezing Point (°C): 898-1064
Synonyms: Copper-zinc Alloy
Shelf Life (months): 36
Storage: Green
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Nickel, 20 mm x 125 mm
CAS Number: 7440-02-0
Formula Weight: 58.71
Formula: Ni
Density (g/mL): 8.90
Boiling Point (°C): 2732
Freezing Point (°C): 1452
Shelf Life (months): 36
Storage: Red