The document discusses the human digestive and excretory systems. It explains that foods contain nutrients like carbohydrates, fats, proteins, minerals, and vitamins that our bodies need. The digestive system breaks down food and absorbs these nutrients, while the excretory system removes waste. Maintaining a balanced diet and practicing good hygiene are important for overall health.

1. natural

2. Which foods can you see in the picture? Why do we eat?
Food contains the different nutrients we need to live and grow.

3. Do all foods contain the same nutrients?
There are five type of nutrients: carbohydrates, fats, proteins, minerals
and vitamins. Different foods contain different nutrients.

4. What do different nutrients give our bodies?
Carbohydrates give us energy.
Fats build a store of extra energy, but you shouldn’t eat too many.
Proteins help us grow.
We need to drink six to eight glasses of water every day.
Vitamins and minerals help us to stay healthy.

5. How often should we eat different foods?
Eat the food in the green levels every day.
Eat a little of the food in the yellow level every day.
Eat the food in the red level only on special occasions.

6. What does our digestive system do?
Mouth
Our digestive system helps us get the nutrients we need from food.
Stomach
Oesophagus
Small intestine
Large intestine

7. What does our excretory system do?
Kidneys
Our excretory system helps us to get rid of waste products.
Bladder
Ureters
Urethra

8. How can we look after our bodies?
We should make sure we rest and do exercise. We should have a good diet.

9. How can we look after our bodies?
We should be hygienic to prevent diseases. We should use our free time wisely.

10. What have we learnt?
carbohydrates fats proteins
The five types of nutrients are…
minerals vitamins

11. What have we learnt?
mouth stomach oesophagus
Our digestive system is made up of the …
small
intestine
large
intestine

12. What have we learnt?
kidneys bladder ureters urethra
Our excretory system is made up of the…