US$ 24.00
and 400 ppm
Variety pack to help with experiment of contrasting resistances and temperature
this presumptive blood test kit uses phenolphthalein and hydrogen peroxide swabs to reveal blood presence through a rapid color change
this 500mL bottle of demo control fluid lets students practice pH
Concentrated rheoscopic fluid for mixing into pearlescent water suspensions that reveal currents
Human Femur Bone Anatomical Model, Right Material_Soda Glass and 400 ppmRight femur bone model demonstrates thighbone structure, anatomical landmarks, and joint articulations for skeletal system teaching.
US$ 24.00
US$ 115.00
US$ 91.00
US$ 110.00
US$ 21.00
US$ 29.00
US$ 120.00