By purchasing yarn from String Theory, you’re lifting up a number of small and female-owned businesses. We help women in Rwanda, who survived the genocide, educate a new generation. We help women in Uruguay find meaningful work without leaving their rural homes. We help a family in New Hampshire maintain a mill, a tradition spanning hundreds of years. We help restore the Patagonia Grasslands by encouraging sustainable farming.Every yarn we stock makes a positive impact.
Eidble: The chemistry experiment you can eat and drink. A Copernicus Toys fan favorite! 16 experiments in one awesome box! Explore surprising ways chemical elements combine to change matter. Make cabbages do your bidding, fizzy drinks, color changing foaming jelly, polymer pudding and much more.
Bubble Gum: Viscoelastic Bubbles and Chewy Molecules! Two of our favorite things combined make this chemistry kit a tasty delight. This set contains all the needed information & ingredients to make your own gum bubble gum, and to explore the properties of polymers and viscoelastic behavior. Poppin' Polymers! This will be fun!
Cool Blue LIght: Learn about chemiluminescence and how fireflies glow. Make a hemoglobin detector, a penny glow, the quantum leap, cool blue light and much more.
Glowing Putty, Gels and Slime: Hands-on explorations of the chemistry behind gels, polymers, and phosphorescence. Experiment with making glow-in-the-dark gel, a putty substance that flows and stretches, breaks and bounces, eco-foam fizzle, and much more. 15 experiments.