This Science video introduces teachers to the structure and functions of skeletons in humans and other animals, supporting the opening lessons of the unit. It covers the difference between internal skeletons (endoskeletons) found in vertebrates, external skeletons (exoskeletons) found in many invertebrates, and animals with no solid skeleton, explaining how each provides structure, support, and movement. The video explores examples such as tortoises with both an endoskeleton and exoskeleton, and highlights additional functions of the human skeleton including blood cell production, mineral storage, and the role of joints in movement.

This video is part of Kapow Primary’s Science – body. It equips teachers with clear explanations and examples to help pupils identify key bones and joints, understand their functions, and describe how different types of skeletons meet animals’ needs. Practical details such as prioritising the skull, spine, ribs, pelvis, and major joints ensure pupils can apply this knowledge confidently in their work.

Science, Lower key stage 2, Year 3, Animals: Movement and nutrition, Lesson 1: Skeletons