Take a discarded walnut shell and make a boat. Create a balloon barometer. Go on a backyard scavenger hunt. Test common foods for starch or vitamin C. Sew a mini-backpack. Make a safe and easy costume for Halloween or the school play. All of these ideas and more are featured in Child's Play 6 -- 12, a wonderful collection of quick and easy-to-make projects, activities, and games for those not-so-easy-to-please grade schoolers whose frantic cries of...