Grade 4 Science: Human Body Structure and Movement
Free Grade 4 Science unit on Human Body Structure and Movement: 10 lessons in order. Includes practice questions and answer keys.
10 lessons in this unit
Human skeleton
Learn that the skeleton is the frame of bones inside the body, and explore what it does: support, protection and movement.
Lesson 2Major bones
Learn the names and positions of major bones such as the skull, spine, ribs, pelvis, humerus, radius, ulna, femur, tibia and fibula, and what each does.
Lesson 3Functions of bones
Learn that bones have five jobs: support, protection, movement, making blood cells and storing minerals, and link bone structure to function.
Lesson 4Joints
Learn that joints are places where bones meet, and compare hinge, ball-and-socket and fixed joints by the movements they allow.
Lesson 5Muscles
Learn that muscles are made of fibres that contract to pull on bones, that they work in pairs, and the difference between voluntary and involuntary muscles.
Lesson 6Movement
Learn how bones, joints and muscles work together to produce movements such as walking, throwing and jumping, and how the brain controls them.
Lesson 7Posture
Learn what good posture is, how the spine and core muscles keep us upright, and how to sit, stand and carry loads in ways that protect the back.
Lesson 8Exercise
Learn how regular exercise strengthens muscles, bones, heart and lungs, investigate how exercise changes pulse and breathing, and plan a safe weekly routine.
Lesson 9Bone health
Learn that bones need calcium, vitamin D, protein and weight-bearing exercise to stay strong, and compare foods and habits that help or harm bone health.
Lesson 10Injury prevention
Learn common bone and muscle injuries such as sprains, strains and fractures, how to prevent them and the basic first-aid idea of rest, ice, compression and elevation.