Crack open this set of 21 eggs and see the day-by-day development of a chick. No incubator required! It features realistic illustrations of a developing chick in eggs 1 through 20, with a plastic 3-D chick inside the final egg. Invites children to make hands-on connections to life science and life cycles. Reinforces concepts and related vocabulary with multilingual Activity Guide that includes definitions, chicken facts and a blackline master to label. Allows for self-checking and easy organization with a numbered label on each egg and numbered places in storage tray.Details:Durable plastic eggs measure 2.75"Plastic tray measures 15" x 8.5"Grades K+For ages 5 to 9