GeoCentral Tortoise Hatch 'Ems Egg Toy

• Submerge the egg in cool water and watch!
• In 48 to 72 hours and keeps growing to 5 inches in length
• Great way to teach measurement!
• Beginning egg measures approx 2.5 inches

Just completely submerge your 2.5 inch turtle egg in a glass or bowl of water,
and wait. Within 12-24hrs, cracks will start to appear in the shell of the
egg. And within 48 hrs, you will have hatched your very own baby tortoise.
Leave it in the water, and it will continue to grow! Once you take it out of
the water though, after a few days it will start to shrink back down to its
original size. Just put it back in the water, and it will start to grow again!
Tortoise colors may vary Growing animals and other things (brains etc!) that
are made to increase in size in water are made up of two polymers. One is
poly(vinyl acetate) which keeps the original proportions and shape of the item
or creature, and the other polymer is polyacrylamide which is the super
absorbent polymer. The growing creatures have many teaching applications in
science and math, including graphing, drawing conclusions, and measurement
using linear, mass and volume. The Growing Creatures Book by Anne Linehan and
Betsy Franco details measurement and data collection projects integrating math
and science. Recommended for ages 6 and up