1. Food provides our bodies with energy and nutrients needed for growth and health. It is classified into five groups: grains, vegetables, fruits, milk, and meat/beans. 2. A balanced diet from all the food groups is important for a healthy diet. The amount of food needed depends on age, growth, and physical activity level. 3. The digestive system breaks down food through a multi-step process involving the mouth, esophagus, stomach, and intestines to extract nutrients for the body.

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FOOD AND DIGESTION
WE NEED FOOD TO LIVE
- Food gives us the subtances we need to grow and
to stay healthy.
- We get energy to walk or study.

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- Some food comes from animals, like
meat and milk.
- Others, comes from plants, like fruit
and bread.
- We also need water and salt, that do
not come from plants or animals.
FOOD GROUPS
- We classify food into five groups:
1.Grains gives us energy.
2.Vegetables gives us vitamines.
3.Fruit gives us vitamines to be healthy.
4.Milk gives us calcium to grow and have
strong bones.
5.Meat and Beans give us proteins to have
strong muscles.

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A HEALTHY DIET
- Our diet is made up of the things that we
eat and drink.
- We need to eat food from all the groups to
stay healthy, this is a balanced diet.
HOW MUCH FOOD DO WE NEED?
- The quantity of food we need
depends on how old we are and how
much physical exercise we do.
- When we are growing, we need more
of some types of food. For example
we need milk because it has calcium.

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- If we do a lot of exercise, we need
to eat more.
FOOD AND MEALS
- There are four meals that we eat during
the day: breakfast, lunch, tea and dinner.
- It is very important to have a good
breakfast.

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- A good breakfast provides the nutriens that
people need to start their day of right.
- A good breakfast should have milk , fruit and
cereals.
THE DIGESTIVE SYSTEM
• The digestive system is made up of the
following organs:
• The mouth , oesophagus , stomach ,
intestines and anus.

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-Food enters our body through our mouth.
- Our oesophagus is a tube between our
mouth and stomach.
- Our stomach is like a bag
- Our intestine is a long tube made up of
small intestine and large intestine.
- At the end of the large intestine is the anus
THE STAGES OF DIGESTION
- 1.Digestion begins in the mouth.
- Our teeth cut and chew the food.
- Our tongue mixes the food with saliva
- Then the food goes down the oesophagus
and into the stomach.

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- 2. In the stomach
- The food is mixed with gastric juices.
3 In the small intestine
-The food is divided into the subtances our body
needs.
- All the useful parts of food go from the small
intestine into the blood.

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4. Parts we cannot use go into the large
intestine.
- They are transformed into faeces and
expelled through the anus.
- Digestion takes time( 2 hours ). We should
wait before we swim or run.