Rick wanted to go to the movies and Gayle wanted to go swimming. They decided to toss a coin to see which they would do. "You call it," said Rick as he flipped the coin. "Tails never fails!" called...
What are your chances?
When you spin a spinner, Which number is best? Will one come up More than all the rest? When you toss a coin, Which side do you call? Is "heads" or "tails" Most likely to fall? Is it all just...
Tricks with heat
These tricks aren't really magic---they just look mysterious. Heat energy makes them work. Water ballet Materials - crayons - ice-cube tray - mixing bowl (large) - paper - scissors - water ...
Rubbings
Materials ■ coins - crayons - paper (thin) - scissors 1. Place a coin on a flat surface. Place a piece of thin paper on top of the coin. Hold the paper in place with one hand and rub the side ...