"young scientists club"

A versatile manipulative for counting, sorting and craft building activities. Size of each: 4 1/2" x 3/8". Set of 500.

Heavy paper stock two-sided hundred boards are laminated for durability and sized perfectly for young students.

Package of 100, 300 or 500 interlocking cubes in 10 standard colors. An activities booklet is included.

Designed to illustrate that height is proportional to mass, when diameter is uniform. Set consists of 52 identified masses which are molded to stack. Included are 4 yellow 10 g masses, eight red 5 g masses and 40 blue 1 g masses.