Activity 1 -The process of digestion.
Discuss the importance of energy and nutrients within the context of the diet (e.g. the body requires energy from food and drinks to function). Then explain that it is essential that we absorb energy and nutrients so they can be used by the body. This process is called digestion.
Ask the children what comes to mind when they think of digestion. You can write some of the correct ideas onto the board to stimulate discussion.
Discuss what digestion is, the way in which energy and nutrients provided by food and drink are utilised by the body. Ask some questions to get the children to discuss their knowledge of digestion:
Use the digestive system presentation and the digestive stages worksheet to introduce pupils to the main body parts associated with the digestive system, for example, mouth, tongue, teeth, oesophagus, stomach and small and large intestine and explore questions that help them to understand their special functions.
Explain how digestion involves different parts of the body: Mouth, tongue, teeth, stomach, oesophagus and large intestine, and that they all have important roles. Use the Label the digestive system worksheet to see if the children know where each part is.
You may wish to show the children the Digestion videos.
Introduce the role different parts of the body (mouth, teeth, oesophagus, stomach and intestines) play in the digestive process (e.g. in the mouth the food is broken into smaller pieces by the teeth through chewing). Using the Digestion functions worksheet, ask children to match the body part to its function.
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