and “Racedrop Raceway!” Tape the Water Drops Unite game and the Racedrop Raceway game to separate pieces of cardboard (the front or back of a cereal box should work.) Tape a piece of wax paper over ...

Discover the amazing properties of water's surface tension as you make metal paper clips float on water. You'll learn about the forces that hold water molecules together and how insects like water ...

A paper was real before the institution of Civil Engineers, London, noticed in the Mechanics' Magazine, which contains some interesting experiments in relation to the use of sea water in our steam ...

I HAVE read with considerable interest Dr. Houstoun's letter on Young's experiment in NATURE of ... is cut in a piece of cardboard. Two Gillette razor-blades are placed on two sides of this ...