This is a fun Christmas / Seasonal science color by number to review Human Body Systems. The following systems are reviewed in this activity.SkeletalDigestiveRespiratoryExcretoryMuscularNervousIntegumentaryCirculatoryThis document includes the student sheet, an answer sheet, and a themed coupon. Illustrations: The illustrations on this document are created by Sarah Pecorino IllustrationKeywords: science Christmas activity, Christmas science activities, color by number science worksheets, Christ