We use the Scott Foresman Reading Street Series and read Seeds last week. We took the advice from the book and put an avocado plant in a jar- held up by toothpicks with only the bottom in the water. My kids are so eager for the plant to start growing. However, I, being a new college graduate, have no idea about what I need to do with this. Do I change the water? Add anything to it? Has this worked for anyone else? It sounds like a stupid question, but my kids are dying for it to start growing. Thanks!