Discover the fascination of astronomy with 100 easy, inexpensive projects that promise loads of fun for sky watchers of all ages. Geared toward beginning astronomers from junior high school level and up, this entertaining guide was written in direct, nontechnical terms by an experienced astronomer and well-known author. Daylight and nighttime activities include sightings of comets, meteors, stars, and planets as well as phases of the Moon, halos,...

Over 50 safe tricks - all based on scientific principles. Grade-schoolers using common, everyday items will soon be performing such mystifying feats as making squares and lines disappear, creating a magical doorway out of paper, cutting glass with scissors, inserting a pin in a balloon without popping it, and much more.

This inexpensive volume showcases an array of curious creatures: a blob-like amoeba; a slipper-shaped paramecium and its mortal enemy, the suctorian; and many others. The authors recount the feeding, reproductive, and defensive strategies employed by these animals in easy-to-understand language that opens the door to a wonderful world of discovery. 37 illustrations.