Question

Fill in the blanks with appropriate words:

1. For proper ……………….. and …………………… our bodies need adequate food.

2. Proteins build ………….. material.

3. Non-living machines burn the fuel at ……………… temperature while living machines burn their food at ………………… temperature.

4. Starch is a ……………… of sugar.

5. ……………….. gives blue colour with iodine.

6. Proteins are made up of …………………… .

7. Skin, hair and nails are …………………… .

8. Co-enzymes are nothing but …………….. .

9. Vitamin C causes ……………….. when found deficient.

10. Our body contains ……………………. of water.

11. Most of the reactions in our body occur in ……………. solutions.

12. Balanced diet is one containing all ……………….. .

13. Deficiency of ……………. causes rough skin, weak eyesight and thinness of body.

14. Excess intake of………………… over a large period may damage kidneys.

15. Lack of ……………….. leads to lethargy, inactivity and feeling of tiredness.

16. …………………… is an area where the garbage is collected.

17. Converting plant and animal wastes into manure is called ……………….. .

18. We need to generate …………….. waste.

19. Method of making compost using …………………. is called vermicomposting.

20. Municipal solid waste is commonly called ………………. .

21. Clothes are made up of …………… .

22. Different clothing materials have ………………. properties.

23. Cotton plants need…………………. climate.

24. Cotton is planted in the ………….. .

25. …………… soil is excellent for the cultivation of cotton.

26. …………………….. Usually cotton is picked from the plants.

27. Separation of cotton fibres from their seeds is called …………….. .

28. A ………………. of cotton is a loose strand of cotton fibres.

29. In villages, the cloth is woven on small scale in …………… .

30. Jute is cultivated in ……………… season.

31. Jute is grown in …………………. soil.

32. On large scale, cotton clothes are made by machines in ……………. .

33. Twisting of fibres into yarn increases the ………………. of fibres.

34. Cotton fibres are obtained from the …………….. of cotton plant.15Jute fibre is obtained from the …………………. of jute plant.

35. Tightly compressed bundles of cotton are called ……………. .

36. The process of getting fibres from the jute stem is called …………… .

37. People migrated to colder regions only after the invention of ……………

38. Changes that lead to the formation of new substances are called ……………… .

39. If the removal of the cause of change leads to regain the original situation, then the change is known as ………….. .

40. Burning of wood in a chulha is a tan change.

41. Melting of candle wax is a/an ……………………. change.

42. Heat is a form of …………. .

43. On cooling, liquid …………… into solid.

44. Conversion of a liquid to vapour by heating is called ………….. .

45. The changes which are controlled by man are called ………….. .

46. ………… is a reversible change.

47. NO new substance is formed in ………. .​

Answer 1

Answer:

1 ) health .......... hygiene