Description

and arid environment survival features for ecology and animal behavior teaching

German pattern brass cork borer set includes 6 sizes from 4-10mm for creating precise holes in cork and rubber stoppers

low-consumption fan motor

5% accuracy in a fully enclosed plastic case

Assorted Steel Spring Set Disposable_Disposable and arid environment survival features150 spring assortment mixing compression and extension types, lengths from 15mm to 300mm, for open ended exploration of Hooke's law, simple harmonic motion, and stored potential energy.

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Assorted Steel Spring Set Disposable_Disposable and arid environment survival features

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