HATCH, GROW, EXPAND AND MORPH! Introduce kids to a sense of responsibility and compassion with Nurchums. Watch your Nurchum hatch and grow as you nurture the egg with water and time. Children engage with the toy and learn patience as it transitions through different stages. Watch the eggs hatch after a few days in a bowl of water, the character inside will continue to grow for up to 14 days. Remove them from water and they will shrink back down to the original size!