WELCOME ELEMENTARY SCIENCE Class Five Chapter Six Food

WELCOME

• ELEMENTARY SCIENCE • Class Five • Chapter Six Food for Good Health

TOPICS TO DISCUSS • Balanced Diet • Food Preservation • Food to Eat Limited

1. Balanced Diet

Food for Good Health

Overeating causes overweight.

STOP TAKING JUNK FOOD!

Importances of Balanced Diet • To be healthy • To work properly • To strengthen immune system • To maintain proper nutrition • To support growth

Demand of foods depends on - to the age - to work of a person

What is balanced diet? Balanced diet means the food from what we will get all components of nutrition ( carbohydrate, protein, vitamin, mineral salts, fat, water etc. ) in proper amount.

Food Guide Serving Amount for 6 -12 yrs Food group Food example Amount Daily serve Grain and potato ( carbohydrate) Ruti, parata, bread Rice, potato, , noodles 1 -2 slices/pieces 1 cup 3 -4 serves each day Vegetables ( Vitamin, mineral) Cooked or fresh vegetables ½ cup 3 or 4 serves each day Fruits (Vitamin, mineral) Mango, apple , fruit juice Fruit juice Dry fruit 1 pieces 1 small glass per day 4 pieces 1 piece, 2 or 3 serve each day Fish , Meat & Beans (protein) Beef chicken Fish Egg Beans ¾ cup 1 leg 1 medium fillet 1 piece Half a cup 1 -2 serves each day Milk group ( Calcium, Vitamin) Milk Yogurt Cheese 250 ml 200 gm 40 gm 1 -2 serves each day Oil and fat Ghee, butter, soyabin oil 1 table spoon 1 serving

Home work • Classify the food you ate yesterday into six groups.

2. Food Preservation

? ? ? In refrigerator In airtight pot

In refrigerator Jam , Jelly, Pickles in airtight pot

Sun drying Using salt

All about the ways of food preservation Using sugar, vinegar or oil In airtight pot

The Ways of Food Preservation 1. Sun drying: rice, wheat, pulses, fish etc. 2. In refrigerator: fish , meat, vegetables, fruits etc. 3. In cold storage: vegetables, fishes, meats etc. 4. In airtight pot: jam, jelly, pickles etc. 5. Using salt or ice: fishes. 6. Using vinegar: olives, plums, mangoes etc.

Importances of food preservation • To stop wastage of food. • To slow down spoilage of food. • To prevent the growth of bacteria in food. • To make seasonal food available throughout the year. • To transport food to far places easily.

Home work • How does food preservation give us many benefits?

3. Food to Eat Limited

Candy Cake

Sweet Fruits loops

Ice-cream with artificial colour

Foods containing artificial colours.

Why artificial colour are added to foods? • To make more appealing • To make more desirable. What problems may food containing artificial colours have? • cancer • attention –deficit disorder • hyperactivity

Chemicals that are added to foods: • Formalin: • To preserve food • To keep fresh • Carbide • For ripening fruits Foods containing chemicals can cause : • Dysfunction of liver and kidney • Cancer

Junk food

Junk food Overeating causes overweight.

Junk food: • Popular food • Delicious but not a balanced diet • Contains a lot of sugar, salt, carbonate and fat that our body needs a little bit. Eating too much junk food cause: • nutritional deficiencies • overweight • obesity

Evaluation • Class Work : Why shouldn’t we eat food containing artificial colours? • Home Work: Why is burger is harmful for our health? Explain it.