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عرض 781–795 من أصل 2205 نتائج
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Combination Dark Chamber
For experiments in phototropism with seedlings. Three chambered case with channels to accept variety of shutters. One chamber has a window at top and back. Provided with clear, opaque and slot shutters and one orange and one blue filter. With three glass containers for seedlings. Overall size 180 x 530 x 180 mm.
SKU: B13397 - Uncategorized
Combined Object And Receiving Screen
Comprising a black metal frame 150 x 100 mm with an aperture, and a removable white card screen. The card has an aperture with an index point for use as an object, or the card may be inverted and used as a receiving screen. Mounted on a base 100 x 50 mm.
SKU: PH30635 - Uncategorized
Comparative Study
All Charts are made on PVC rexine, hand drawn, waterproof, in fast multicolours with a black background. Each chart is provided with rollers to hang on wall. Size 75×100 cm.
1) Vertebrate Hearts
2) Vertebrate Brains
3) Vertebrate Skulls
4) Vertebrate Limbs
5) Vertebrate Girdles
6) Vertebrate Urinogenital system
7) Vertebrate Embryos
8) Vertebrate Arterial arches circulation
9) Vertebrate Genital apparatus & venous systemSKU: B13106 - Uncategorized
Comparative Terrain Model
Set of 2 landform models, each includes an overlay representing ancient mountain forms that can be removed and compared with the base model to show changes millions of years later. Cross section shows basic mountain types, volcanic fault block, glaciated domes and folded mountains,with lesson plan, size 45 x 60 cm.
SKU: B19050
