US$ 60.99
5cm coil diameter on a 5cm closed-length helix
with a spacer and keepers in a 3
both striking the ground together
and repulsion
letting students vary the moment arm distances on either side and find the balance point for any combination of masses
3D Plant Cell Division (Meiosis) Model, 24 x 18", Hand-Painted Size_Small 5cm coil diameter on aThree dimensional plant meiosis model traces chromosome pairing, crossing over, and reduction division through successive hand painted stages on a mounted base.
US$ 60.99
US$ 49.97
US$ 79.99
US$ 36.99
US$ 74.97
US$ 79.99
US$ 79.99