Science Std IV Chapter 6

6. Food and Nutrition

A. State whether the following statements are true or false.
1. The process by which living beings obtain and utilize food for their growth and development is
     called nutrition.
2. Proteins are also called protective food.
3. The fibre present in our food is known as roughage because it has got food value and can be
     digested easily.
4. The food that we eat on a regular basis forms our diet.
5. We should drink one to two litres of water everyday.
6. Eating too much or too little of any nutrient can cause diseases.

C. Answer the following questions.
1. Why do we need food?
2. What are nutrients?
3. What are carbohydrates? Name some sources of fat.
4. Why do growing children require more proteins? Name some protein-rich food.
5. Why do we need fats? Name some sourcesof fats.
6. What are vitamins and minerals?
7. Why do we need roughage? Name some food rich in roughage.
8. What is a balanced diet?
9. What are bodybuilding foods?
10. Why should we eat required amount of carbohydrates?
11. Why should growing children have milk?
12. How much water does make up for our body weight?
13. Name some food items that contain water.
14. Write the methods of preserving food so that it does not get spoilt easily and can be consumed later.
      Give examples

D. Fill in the blanks.
1. The process by which living beings obtain and utilize food for their growth and development
    is called ______________________.
2. People like ______________________ and  ______________________ do a lot of physical
   work and therefore, require more carbohydrates.
3.  ______________________ are also called bodybuilding foods.
4. Our body stores extra  ______________________ for future use.
5. Green leafy vegetables are a rich source of  ______________________.

E. Tick the correct answer.
1. Food items rich in vitamins and minerals are
    (a) fresh fruit    (b) dry fruit     (c) butter and oil.
2. The nutrients which keep our body warm are
    (a) carbohydrates    (b) proteins    (c) fats.
3. Bread, wheat and potato are rich in
    (a) fats   (b) carbohydrates    (c) roughage
4. Calcium, iron, potassium and iodine are some of the
    (a) minerals    (b) vitamins    (c) proteins
5. The other name for bodybuilding food is
    (a) roughage    (b) mineral    (c) protein
6. The food that we eat on a regular basis forms our 
    (a) balanced diet   (b) diet    (c) nutrition
7. We get energy to work from
    (a) fats   (b) proteins    (c) minerals    (d) carbohydrates
8. Brown rice, oatmeal and fruit are rich in
    (a) fats   (b) roughage    (c) minerals    (d) protein

F. Complete the web chart

G. Find seven words related to this chapter in the given grid. The words may read forward,
    backward and across.

H. Answer in one word or few words.
1. The common term for vitamins and minerals.
2. Found in spinach, meat and milk
3. Energy giving foods.
4. Thick layer of fat under the skin of some animals.
5. Minerals required by our body in small amounts.
6. Mineral that helps in the formation of our bones and teeth

I. Define
1. Nutrients

J. Write the sources of the vitamins given below.
1. Vitamin A
2. Vitamin B
3. Vitamin C
4. Vitamin D
5. Vitamin E
6. Vitamin K