Place these hard crystals in water and they expand about 300 times, producing gel-like spheres. Students love to feel the slippery, spherical gel! The Regular size starts with a diameter of about 2 mm and ends with a diameter of about 14 mm. Ask students to determine the change in ...Place these hard crystals in water and they expand about 300 times, producing gel-like spheres.
Students love to feel the slippery, spherical gel! The Regular size starts with a diameter of about 2 mm and ends with a diameter of about 14 mm. Ask students to determine the change in volume, using V = πr3. Great for starting seeds and growing plants so that the roots can be seen! Can be tinted using food coloring.
The polymer is similar to our super-absorbent, polyacrylamide polymer (GB-5B and GB-3) and can be dried and reused. Small (~1 cm expanded), Regular (~1.4 cm expanded) or Jumbo (~3.3 cm expanded)! (Each package contains 50 grams.) Item # Style Size Grams # of Spheres GB-702 Small ~1 cm (0.4") 50 ~3000 GB-710 Regular ~1.4 cm (0.55") 50 ~2500 GB-730 Jumbo ~3.3 cm (1.3") 50 ~870 Download the MSDS of this product. Read more on our Blog - The Magic of Seeds, Spring and Science! Read more on our Blog - Using Growing Spheres for 3D Modeling Read more on our Blog - Growing Spheres Help Students Absorb Scientific Principles Read more on our Blog - Ghost Eyeballs | Growing Spheres Adult supervision required.
This is not a toy. Do not ingest.