Teacher asks a grade three class to pick their favorite element. Little Robby raised his hand and said "I would want gold, because gold is worth a lot of money and I could buy a Porsche." The teacher nodded and called on little Susie. Little Susie said, "I would want platinum, because platinum is worth more than gold and I could buy a Vibe." The teacher smiled and then called on Little Johnny. Little Randy stood up and said, "I would want silicon." The teacher said, "why Randy?" He responded by saying, "because my mom has two bags of it and you should see all the sports cars outside our house!"