These 18 Google slides include videos, diagrams and worksheets on the Excretory System. Everything you need to know or teach about the EXCRETORY System, URINARY System and the KIDNEYS.Content covered:Definition of excretionExcretory organs (Kidneys, Lungs & Skin) and what they excrete.Difference between excretion and egestionParts of the kidneyMain functions of the kidneyHow do the kidneys workThe Urinary SystemLet's stay connected!⭐ Follow My TPT Store for freebies and sales! Earn yoursel