Solids, Liquids, Gases
"May we walk home with you this afternoon, sir?" asked Fred.
"Certainly, my boys," replied Mr. Wilson. "I was thinking of putting my museum cupboard into your charge," he continued. "You could keep the things in order, dust them regularly, and help me with the experiments during the lessons. Would you like that?""Oh, thank you very, very much, sir," said both the boys at once. "We"ll be very careful with everything.""Now, what have you got to chat about as we walk along?" asked Mr. Wilson.
"Our lesson on the force of cohesion, sir," said Fred, "helps us to understand, better than we have ever done, why there should be three distinct states of matter-the solid, the liquid, and the gas.
