How it Works: How the Universe Works
Grade 5-7-One hundred astronomy experiments, broken down into six groups: "Spaceship Earth," the moon, the solar system, the sun, the stars, and the cosmos. While some of them are quite simple (e.g., tying a string around an eraser, swinging it in circles, and then shortening the string to observe the change in speed), many require careful measuring, cutting, and drawing. (Parents may find themselves doing a lot more than lighting candles and covering sharp edges.) Information on the various phenomena demonstrated is quite brief; the book is clearly not intended for reports. Browsers will be drawn to the large, colorful format and photographs, but the volume is best suited as a classroom source for activities to accompany science units.Elaine Fort Weischedel, Turner Free Library, Randolph, MACopyright 1994 Reed Business Information, Inc.