1. natural
sciences 3

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.
Vitamins and minerals help us to stay healthy.
We need to drink six to eight glasses of water every day.

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
Oesophagus
Small intestine
Stomach
Foto panda, bee and pig p. 6
Large intestine
Our digestive system helps us get the nutrients we need from food.

7. What does our excretory system do?
Kidneys
Ureters
Bladder
Urethra
Foto panda, bee and pig p. 6
Our excretory system helps us to get rid of waste products.

8. How can we look after our bodies?
Turtle/eagle/cheetah p. 6
We should make sure we rest and do exercise. We should have a good diet.

9. How can we look after our bodies?
Turtle/eagle/cheetah p. 6
We should be hygienic to prevent diseases. We should use our free time wisely.

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

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

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