"Go and get the old iron spoon. Will," said Fred. "We"ll have our lesson all over again when Norah comes in."Away ran Willie, while Fred went to find one or two things he wanted for the lesson, and they were soon ready to begin.
"Now, little girl," said Fred, "you have seen me use this iron spoon before. What did I do with it?""You put a piece of wax in it and held it over thefire," said Norah.
"What then?" asked Fred. "The wax melted.""What does that mean?" he asked again.
"The solid wax became liquid wax, and flowed about," said Norah.
"I think, too, we have melted something else besides wax," said Will.
"Oh yes," said Norah, "we melted sugar in the spoon too.""I want to use the spoon again now. Do you know what this is, Norah?
"It is a piece of lead, I think," she said.
"You are right, sister. It is lead," said Fred. "Now look and see what happens when I put this lead in the spoon, and hold it over the fire.""The lead has melted and the liquid flows about in the spoon just as the other things did," said Norah.
