Growing T-Rex

$3.50 $6.99

num:

One growing Dino!

just add water takes upto 72 hrs

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.

Teaches about water absorbing polymers, increases in mass, measuring and charting, and simply impressive science.

Colouration may vary from picture