Lesson 1: The human digestive system

Before starting this unit, check the children can recall the following key facts from units Science, Year 2, Animals: Life cycles and health and Science, Year 3, Animals: Movement and nutrition:

• Humans need air/oxygen, food/nutrients and water to survive.

• The life processes include movement, reproduction, sensitivity, growth, excretion and nutrition.

• The seven nutrient groups are carbohydrates, protein, fats and oil, fibre, vitamins, minerals and water.

• Muscles cause movement in our bodies.

Use the Activity: Recap and recall digestion mind map (one each) if needed to elicit the children's prior knowledge.