US$ 20.00
Children use all 5 senses
and iron — for water-displacement and direct-measurement comparisons of material density
securing rods and posts up to 40 mm thick across laboratory stand configurations
Life-size hand-painted spinal cord model shows cervical through sacral segments with emerging nerve roots
Red Molecular Model Atom, 2cm, 2 Holes at 90°, 10-Pack Material_Wood Children use all 5 sensesBent two hole red atoms at a 90 degree angle in a 10 pack at 2cm diameter, conventional stand ins for oxygen centers in water and alcohol like structures.