Lesson Notes By Weeks and Term - Junior Secondary School 1

FIRST TERM

SUBJECT:  BASIC SCIENCE

CLASS:  JSS1

REFERENCE

• Precious seed BASIC SCIENCE FOR JUNIOR SECONDARY SCHOOLS BOOK 1
• NIGERIAN BASIC SCIENCE PROJECT BOOK ONE, Integrated Science made Easy By F.I Kehinde

WEEK SEVEN AND EIGHT

TOPIC: FAMILY HEALTH (II) (NUTRITION)

CONTENT

• FOOD AND BALANCED DIET
• TYPE / COMPOSITION
• BALANCED

FOOD AND BALANCED DIET 

Nutrition is the intake of food by all living organisms(i.e. plants and animals) in order to live well.

Food is a substance that we eat and digest in order to provide energy and help in body building. Food is also anything taken to provide energy, nutrients, to build the body, to relace worn-out cells and to grow and develop a healthy body. It includes many things we eat and drink except alcohol, cigarettes and drugs 

BALANCED DIET:  An adequate diet is one that is sufficient in quantity and food nutrients in required amount or proportions.

An adequate diet is called balanced diet. 

In terms of quantity, the human body requires more carbohydrates followed by proteins lipids, vitamins and minerals. 

PROCEDURE FOR PLANNING A BALANCED DIET

1 Plan in a tabular form, an adequate diet for your home, in your own part of Nigeria.

2 Use as far as possible locally produced food items.

3 In cases where you have a choice use food items you personally prefer.

TYPES OF FOOD 

Types

1 Solid or liquid e.g. 

Solid foods Liquid foods

Yam Milk

Rice Cocoa drinks like Milo 

Bread Bourn vita

Beans Fruit juice

2. Local foods e.g.

Local foods  

Beans

Rice  

Yam  

Sweet potato  

1. Imported foods

Milk

Stockfish 

Butt                                                                                                                                     Pasta 

1. Cereals, vegetables and fruits e.g.

Cereals                      

Rice                  

            Corn flakes                                                   

Wheat                              

1. Fruits e.g. mango, orange, lemon, apple, pear, guava, etc.
2. Vegetables: okra, spinach, waterleaf, lettuce etc.

1. Foods eaten raw or cooked e.g.

Foods eaten raw

Lettuce                   

Pawpaw         

Mango                

Banana                   

Cucumber        

1.        Foods eaten cooked

                   Yam

      Rice

      Beans

      Meat 

       Potato

Food can also be grouped into three categories according to the functions they perform in the body . These are:

1. Energy giving food e.g. carbohydrates, fats and oils.
2. Body building food e.g. proteins.
3. Protective food e.g. vitamins and mineral salts.

EVALUATION

1. Give three ways of planning for adequate diet.
2. State five examples of food eaten raw.

Classes Of Food

GENERAL EVALUATION 

1. List six food types and their composition
2. Define a balanced diet
3. List the types of food we have.
4. State five examples of food eaten raw.

READING ASSIGNMENT 

• Basic science By NNOF pages 6-11 or Basic science made easy by F.I Kehinde Pages 10 – 15, 
• Precious seed BASIC SCIENCE FOR JUNIOR SECONDARY SCHOOLS BOOK 1 PAGE 23-34

WEEKEND ASSIGNMENT 

1 Which of the following is not a food item? (a) Milk (b) Spinach (c) Orange (d) Alcohol

2. A disease that results from the lack of protein is called ______ (a) a hunger disease (b) a poverty disease (c) Kwashiorkor disease (d) vitamin deficiency disease 

3 _______ is a substance we eat and digest and give energy to the body (a) Starch (b) Food (c) Protein (d) Balance diet 

4 Which of the following is the function of vitamins in the human body ?(a) providing energy (b) preserving health (c)  body building (d) none of the above

5       The following food items are sources of carbohydrate except (a) beans (b) yam (c) rice (d) orange 

THEORY 

1 Prepare an adequate diet chart. 

2 List the six classes of food and their functions.