US$ 10.00
and one 10 gram discs to total 250 grams for fine-grained physics force and balance experiments
Square-topped wooden screw simple-machine model with a leverage block
coronary vessels
chloroplasts
Brass Specific Gravity Cylinder with Hook Geology_Geology Charts & Models and one 10 gram discsBrass 2 by 0. 5 inch specific gravity cylinder with a top hook for spring scale massing, a mid density reference for comparative experiments alongside the copper and aluminum cylinders.
US$ 10.00
US$ 14.00
US$ 19.00
US$ 14.95
US$ 18.95
US$ 199.50
US$ 14.00
US$ 129.00
US$ 11.00
US$ 69.00
US$ 25.00
US$ 16.00
US$ 11.00