Ginormous Grow Shark
- This shark that starts off 6.5 inches (14 cm) will grow to over 16 inches in about 10 days.
- Take it out of the water and watch it shrink back to its original size, over time as it dries. Re-grow and re-shrink it again and again.
- Teaches about water absorbing polymers, increases in mass, measuring and charting, and simply impressive science. Place the Ginormous Grow Shark in a tub or bucket of water and watch it grow over 1.5' long and 9" wide in 7 to 14 days!
- Choking Hazard, Small parts. Not for children under 3 years.
Out of stock