Year 4 - Science
More about the journey of food
Introduction to the human digestive system
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
This unit covers the basic functions of the human digestive system and identifies different types of teeth and their functions. It focuses on asking questions, gathering and presenting data, recording findings with diagrams and charts, and reporting results through written and oral presentations.
Lesson Summary
You will learn to describe the final part of the journey of food through the human digestive system.
Key Notes
- From the stomach, food moves through the small intestine where digested nutrients are absorbed through the walls.
- Undigested food travels through the large intestine, where remaining water is removed.
- Waste food is stored as faeces in the rectum and leaves the body through the anus.
- Models can be used to demonstrate and explain things that we are not able to see or experience for ourselves.
Vocabulary To Learn
- intestine: The intestine is a long tube that is split into the small and large intestine, through which food travels from the stomach and out of the body while it is being digested.
- nutrients: Nutrients are important substances that living things use to stay alive and healthy. Animals take in nutrients from their food.
- rectum: The rectum is the end part of the large intestine that holds faeces before it leaves the body through the anus.
- faeces: Animals make solid waste in the form of faeces.
- anus: The anus is the hole at the end of the digestive system through which solid waste is pushed out.
Common Mistakes To Avoid
- Pupils may think that all the food we eat is used by the body.
3 Quick Questions (With Answers)
1. Explain the scientific idea in this lesson using two key points.
From the stomach, food moves through the small intestine where digested nutrients are absorbed through the walls. Undigested food travels through the large intestine, where remaining water is removed.
2. Define this scientific word and use it in context. 'intestine'
The intestine is a long tube that is split into the small and large intestine, through which food travels from the stomach and out of the body while it is being digested. Include the word in a full scientific explanation, not as a single label.
3. Correct this common scientific misunderstanding.
Mistake: Pupils may think that all the food we eat is used by the body. Correction: When pupils model the lower part of the digestive system they will see some of the food is absorbed as nutrients and other parts form waste which leaves the body.
More Lessons In This Unit
- Carnivore, herbivore and omnivore teeth (non-statutory) Study Guide
- Comparing toothpaste (non-statutory) Study Guide
- Different teeth for different food Study Guide
- Looking after our teeth: plan and do (non-statutory) Study Guide
- Looking after our teeth: review (non-statutory) Study Guide
- Presenting the human digestive system Study Guide
- The functions of teeth Study Guide
- The human digestive system Study Guide
- Types of teeth Study Guide
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