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These Jelly Marbles help kids learn about hydrogels and how they're used to help the environment. They can also be used to teach lessons in color and light. What starts out as a 3mm pebble, quickly becomes an approximately 20mm ball of jelly! 50-gram jar of Jelly Marbles (over 700 individual Jelly Marbles) can be used over and over again.
Price: $14.28 from Discount School Supply School Supplies Arts Crafts
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Call them what you want - water marbles, clear spheres or jelly marbles - kids won't believe their eyes when they "magically" uncover a secret message with this Jelly Marble polymer demonstration kit. Teaches a captivating lesson about light and polymers.
The Water Jelly Crystals Classroom Kit contains polymer crystals that absorb 300 times their weight in water. Use this unique substance to blend colors, reveal hidden messages and make "ghost crystals" appear and disappear! The large, unbreakable test...
Making slime is a great way to introduce the concepts of change in states of matter (from a liquid to a solid), demonstrate the process of cross-linking long chains of molecules, and to explore the science of polymers. This kit makes 128 batches of slime...