My science table is the outdoor grill with the lid kept down so the backyard squirrels don't line their leaf nests with the pellets. Meanwhile, every time my husband makes a dinner choice, I remind him not to turn on the grill and char the pellets. I am waiting for my friend, Judy, one of my partners in crime concerning all things outdoors, to dissect the large pellet with me. I thought it might be a little much for the preschool to see and they are not sanitized. I guess grilling them might do the job!!!