The chemistry teacher was berating the students for not learning the Periodic Table of the Elements.

She said "Why when I was your age I knew both their names and weights."

One kid popped up, "Yeah... but teach, there were so few of them back then."

= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
One student couldn't be motivated to take an interest in science at all. He said, "I plan to go into the business.
Name me one thing science has done to help business."

The teacher shot back, "And just where would the belt industry be without the law of gravity."