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Similar to B12010 but with interchangeable male/female sex organs, dissectable in 14 parts, on base, with key card.

Similar to B12022 but without head. Dissectable into 6 parts, on base, with key card.

Greatly enlarged, internal wall is removed to show the incisiors, molars, permanent canine and permanent premolars in full view, as also the arteries, veins and nerves serving them, on a large size board, with key card.

Ideal for classroom demonstration, this hydroelectric power station model allows students to directly observe the process of conversion of water flow to electrical energy that occurs in hydroelectric power plants. The water turbine is mounted on a plastic base together with a dynamo, newton disc, lamp, LED, and a two way selecting switch. The switch selects delivering power to either a lamp or a Newton’s Color Disc. The LED can be removed if you instead want to draw current from the 4 mm output terminals. Includes instructions.

Aluminium, set of four nesting cylinders, largest of size 125 x 140 mm diameter x ht. The smaller pails are fitted with insulated feet.