US$ 81.00
Chrome-plated 50mm reading magnifier with a 10cm focal length
pH standardization
5mL graduations for impact protection during laboratory measurement
organic compound dissolution
Earthquakes and Seismic Waves Wall Chart, 75 x 100 cm Base Shape_T-Shaped Chrome-plated 50mm reading magnifier withEarth science wall chart explaining earthquake origins, the ground motion of P waves, S waves, and surface waves, and the relationship between a quake's focus and epicenter.