Human Respiratory System Model, Half Life Size, with Head, Throat, and Lungs Ag Mechanics supplying the small components needed

supplying the small components needed to extend electromagnetic induction work beyond the standard core and coil pair

dropping freely through the ring when cool but stopped by the ring once flame heating expands the ball

the triangular-cross-section blank giving classroom-grade dispersion for refraction and spectral-line experiments

1000mL CAPACITY || Single Erlenmeyer Flasks with 1000mL capacity and easy-to-read white enamel graduations every 200mL

Human Respiratory System Model, Half Life Size, with Head, Throat, and Lungs Ag Mechanics supplying the small components neededLongitudinal head throat lung cross section reveals the full air pathway from nostrils through trachea to alveoli at half life size for respiratory teaching.