Grade 5 Science: Human Body Systems
Free Grade 5 Science unit on Human Body Systems: 10 lessons in order, starting with Human body organisation. Includes practice questions and answer keys.
10 lessons in this unit
Human body organisation
Learn that the body is organised from cells to tissues, organs and organ systems, and see how the systems work together to keep a person alive and well.
Lesson 2Digestive system
Learn the path of food through the mouth, oesophagus, stomach, small intestine and large intestine, and what each organ does to break down food and absorb nutrients.
Lesson 3Respiratory system
Learn how air travels through the nose, windpipe and bronchi to the lungs, how oxygen enters the blood and carbon dioxide leaves, and how breathing is controlled by the diaphragm.
Lesson 4Circulatory system
Learn that the heart pumps blood through arteries, capillaries and veins to carry oxygen and nutrients to all cells, and measure pulse safely before and after gentle activity.
Lesson 5Skeletal system
Learn that the skeleton supports, protects and helps move the body, name the main bones, joints and types of joint, and describe how bones grow and heal with healthy habits.
Lesson 6Muscular system
Learn that muscles pull on bones to move the body, work in pairs, come in three types, and grow stronger with exercise and good nutrition.
Lesson 7Nervous system introduction
Learn that the brain, spinal cord and nerves carry messages, name the parts and the five senses, and investigate reaction time with a safe ruler-drop test.
Lesson 8Interactions among body systems
Learn how the digestive, respiratory, circulatory, muscular, skeletal and nervous systems work together, using running as an example, and what happens when one system struggles.
Lesson 9Nutrition and health
Learn the food groups and what each gives the body, plan a balanced meal from local foods, read a simple food label, and understand why water and fibre matter.
Lesson 10Healthy lifestyles
Learn how exercise, sleep, hygiene, clean water, safe food and avoiding harmful substances protect health, and make a personal healthy-living plan.