Principles of Gel Filtration Chromatography, to show dye separation on the basis of their size and shape, Kit includes: Instructions, sample mixture, chromatography columns, dry matrix, elution buffer, transfer pi
Game Divide 2-Digit Numbers Learning Center-Grade 3-5, features a Curriculum Mastery Game with 30 illustrated, topic-specific question cards; 1 laminated game board; and materials for four players; 4-panel guide, Write-On/Wipe-Off activities
PineCAR Racer Basic Car Kit (scouting car), includes wood block, wheels, hubcaps, two lead-free one-piece axles and four lead-free nail-type axles. Wheels and axles should be the same on all cars in a race. Block dimensions - 1 3/4in w x 7in l (4.44 cm x 17.7 cm)