US$ 100.00
3oz each in a 2-pack for double-sized chemistry-themed drinking vessels
Heavy-gauge steel inclined plane with built-in vertical
Fullerene C60 kit with 60 atoms and 90 bonds for building the spherical cage structure characteristic of fullerene carbon allotropes
Hand-cranked 4-stroke gasoline engine model at 13
Pea Seed Germination Model on Base, 14" Biology_Botany 3oz each in a 2-packPea seed germination model traces cotyledon splitting, shoot emergence, and root development across successive stages for dicot germination teaching.
US$ 100.00
US$ 14.99
US$ 142.99
US$ 50.00
US$ 18.00