If your second grader has brought home their clay turtle and seeds, they will probably want to grow the seeds on the turtles shell just like in the book "Mossy." The seeds are simply chia pet seeds. You can search for information regarding best ways to grow the plants, or look at the links I have provided:
http://www.instructables.com/id/Sprouting-Chia-and-Other-Small-Seeds/
http://www.wikihow.com/Grow-a-Chia-Pet
Feel free to email me if you have any questions!
http://www.instructables.com/id/Sprouting-Chia-and-Other-Small-Seeds/
http://www.wikihow.com/Grow-a-Chia-Pet
Feel free to email me if you have any questions!