This is a great resource for students researching constellations. This would work well as either a science or history lesson supplement. Eyewitness Explorers, Night Sky . There are colorful pictures and fun and exciting experiments to try. This book is very useful.
Kids can try some of the experiments on their own.
Would also be great to assign experiments for homework. An Outdoor Science Book, The Starry Sky . This book tells why stars twinkle and why the moon moves across the sky. It talks about why we can see certain constellations and why. The book gives good explanations which are easy to understand.