Loading Video…
This browser does not support the Video element.
Flint Hills - Girls, Science and Technology
Play with hydrophilic spheres! These cool spheres grow and expand by about 300 times in water, and can vanish in water.
This browser does not support the Video element.
Play with hydrophilic spheres! These cool spheres grow and expand by about 300 times in water, and can vanish in water.