A Disappearing crystal is a substance called a hydro-gel that when placed in water the crystal swells into a transparent tapioca-like bubble of encapsulated water and disappears when removed from the water it become visible.
DC101 Individual item $2.00
DC102 Pack of Ten $10.00
DC103 Pack of Tewnty-five $18.00
This CD-ROM contains activities that integrate the use of
Disappearing Crystals to investigate the refraction of
light and the basic properties of crystals. Designed as a resource for
teachers and home schooling parents, this CD includes interactive hands-on
activities, an assessment quiz with automatic feedback, built in digital
presentation tools and a complete step-by-step lesson plan.
Stock Number Description Price
CD106 Individual CD $9.95
HD glasses allow the wearer to perceive 2-dimensional images in the third dimension! We sell ChromaDepth® high definition glasses which are generally used for print and laser light shows. Children will love using these glasses for all types of viewing, from looking at their own 3-D drawings to watching TV, video, and movies. This item makes a great premium for distribution at school open-houses and other youth related organizational gatherings.
HD104 Individual item $3.00
HD105 Pack of Five $13.75
This interactive CD-ROM contains hands-on activities that integrate the use of HD Glasses to study geologic land formations in high definition in order to develop basic cartography skills, to gain a hands-on understanding of the use of 3D imaging and the ability to apply concepts in optics to the field of geology.
Stock Number Description Price
CD107 Individual CD $9.95
This detector contains UV beads inside of a clear cylindrical tube accompanied by a UV- radiation level scale. The two ultraviolet (UV) light sensitive beads are coated with a photo-chromatic dye that reacts to UV light and cause the normally white beads to change into a vibrant blue color when exposed to Sunlight, UV emitting black light, or other UV sources. This item makes a great premium for distribution at school open-houses and other youth related organizational gatherings or for homeschooling parents teaching a hands-on lesson about UV light.
UV108 Individual item $3.35
UV109 Pack of Five $9.95*
*NOTE: These UV-Detectors are small, only 8 cm long compared to the standard size detector which is 15 cm in length.
This interactive CD-ROM contains hands-on activities that integrate the use of UV-Light Detector in a study of the electromagnetic spectrum, ultraviolet radiation, and its effects on the skin. Features found on the CD include: a complete step-by-step lesson plan, lab data input form, self grading assessment quiz, and printable lesson materials.
Stock Number Description Price
CD110 Individual CD $9.95
