AquaClear 20 Power Filter features a unique multi-stage filtration system that provides complete mechanical, chemical and biological filtration on water quality, Zeo-Carb and Ammonia Remover, Maximum Output: 378 L
Formation of Native Copper Mineral Deposit Kit, Includes: Copper sulfate, Sodium chloride, Iron nails, Plastic vials, Filter paper discs, 25mm, Hand magnifiers, helps to create specific environment conditions, examine formation of native copper deposit
Rolling friction car kit, provides four cars for exploration into the force of friction, Each car provides a set of different material wheels (wood, fabric, soft rubber, soft silicone), Weight (lb): 1.0, Length (in):5.8, Width (in):6.5, Height (in):3.5
Rectangular Refraction Cell, Material: acrylic rectangular, Color: clear, excellent for showing refraction and internal reflection in water, and to measure its refractive index, has uniform wall thickness to eliminate distortions, Dimension: 6X3X6.2 CM
Cube, Individual cubes for density experiments, Available in eight different materials: acrylic, aluminum, brass, copper, nylon, polypropylene, PVC, and steel, Each material is represented by a 1/2inch, 1inch and 11/2inch cube