BALLOON SCIENCE Etta Kaner Illustrated by Louise Phillips Toronto, Kids Can Press, 1989. 96pp, paper, $9.95 ISBN 0-921103-61-1. CIP Grades 4 and up/Ages 9 and up Reviewed by Eve Williams. Volume 18 Number 2 1990 March Take one keen mind (five years old and up), a pack of balloons, various household items, i.e. clothespins, tape, plastic cups, and Balloon Science, and voila! you are ready for learning science at home or at school. Etta Kaner has put together a science activity book with over forty balloon experiments that explore aspects of air, helium, carbon dioxide and water. Each double-page spread - for example, "Where's the Low Pressure?" - tells you what you need to conduct the experiment, leads you through the activity, suggests reasons for the outcome, mentions others who took the results a stage further, in this case Daniel Bernoulli, provides another low-pressure anecdote, and throws in a riddle for good measure. This approach covers a lot of bases: hands-on learning, information and fun. A classroom teacher, a parent or a science-loving kid will get good value from this "can do" book. The witty illustrations by Louise Phillips enhance the work. Recommended. Eve Williams, MacNaughton High School, Moncton, N.B.