fabioclass

water and its properties


WATER

WHAT IS WATER?

Water is a clear, colourless liquid which we drink from time to time. It has no smell when pure and clean.




USE OF WATER

1. Water is used for washing our clothes, our body and our dirty utensils.
2. It is used for cooking our food.
3. Water is needed by the body just as we need other foods such as meat, yams and milk. The water is used during the break down (digestion) of other food materials. The digested food is moved round the body in the water of the blood.
4. In big towns, water is used to carry away dirty things such as household refuse and faeces.

SOURCES OF WATER

Those of us from big towns often believe that the water we drink comes from pipes and taps. This is not correct. The pipes only bring us water from the source. The main sources of water are:
1. RAIN: rain brings water from the clouds and sky. In the rainy season, rain water can be very clean. However, in the dry season it is always dirty because of dusts and other impurities in the air.
when rain falls, much of the water sinks into the soil till it reaches an impervious layer where it cannot pass through. It then travels along on this layer till it burst out, usually, at the side of hills and flows away. This type of water is called spring water.





2. SPRINGS: It is usually very clean since the soil usually filters and removes the dust and germs of the rain water.
3. STREAMS AND RIVERS: spring water runs into streams. Many of this streams flow into one another to form big rivers. Some stream water can be clean, but those that run through many villages are not. This is because the villagers empty their refuse in them. Water from rivers are usually not clean. Rivers carry a lot of refuse and mud.
4. WELL: most of us have not seen wells because we live where there is water from taps or springs. Some of us, on the other hand, obtain water from wells. Wells are deep holes dug into the soil to obtain water which sank into the soil when the rain fell. Some wells may be deep while some may be shallow. Water from deep wells can be clean and good, but that from shallow wells are not.

CARE OF WATER SOURCES

SPRINGS: springs can be prevented from being polluted if fences are erected around them. Some government builds cement walls around them to prevent animals and men going near them.
WELLS: wells should be dug far away from latrines. They should be protected with cement walls. The opening should always have a lid which can be locked up when it is not in use. This will prevent children




throwing in dirts. It will also prevent some accidents.


HOW TO MAKE DIRTY WATER FIT FOR DRINKING

Small quantities of water used in the house for cooking and drinking can be purified in two ways.
1. BY FILTRATION: by using a clean cloth tied to the mouth of a pot, the dirty water is filtered. Porcelain filter are used by many people to filter their drinking water this removes floating particles and bacteria present in water.
2. BOILING: if impure water is boiled for about 20 minutes the bacteria in the water will be killed. Boiling water should also be filtered.
Large quantities of water for villages and towns are purified by adding a little quantity of chlorine to a large quantity of water. The chlorine kills bacteria and germs present in the water. Other substances used to purify water are potassium permanganate and chloride of lime.

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Important topics related to the above article

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3. Branches of biology
4. Processes of methods of science
5. Usefulness of science
6. Living and non-living things
7. Characteristics of living things
8. Differences between plants and animals
9. Organization of life
10. Complexity of organization in higher organisms
11. Kingdom monera
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13. Kingdom fungi
14. Kingdom Plantae
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18. Structures of plants and animal cells and functions of their components
19. Similarity and differences between plant and animal cell
20. Diffusion
21. Osmosis
22. Plasmolysis
23. Haemolysis
24. Turgidity
25. Faccidity
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27. Feeding
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You can read some of most interesting topics below
Agricultural biology topics


HERE YOU WILL FIND EVERY AVAILABLE TOPICS ABOUT AGRICULTURAL SCIENCE AND BIOLOGY. AND THE LINKS TO THEIR VARIOUS SOURCES.

1. DEVELOPMENT OF AGRICULTURE
2. IMPORTANCE OF AGRICULTURE
3. SUBSISTENCE AGRICULTURE
4. COMMERCIAL AGRICULTURE
5. PROBLEM OF AGRICULTURAL DEVELOPMENT
6. SOLUTIONS TO POOR AGRICULTURAL DEVELOPMENT
7. AGRICULTURAL LAWS AND REFORMS
8. ROLES OF GOVERNMENT IN AGRICULTURAL DEVELOPMENT
9. AGRICULTURAL POLICIES
10. PROGRAM PLANNING IN AGRICULTURE
34. FORESTRY
35. WILDLIFE CONSERVATION
36. FACTORS AFFECTING LAND AVAILABILITY
37. TOPOGRAPHY
38. SOIL
39. BIOLOGICAL FACTORS
40. SOCIAL-ECONOMIC FACTORS
41. ENVIRONMENTAL FACTORS AFFECTING AGRICULTURAL PRODUCTION
42. CLIMATIC FACTORS AFFECTING AGRICULTURAL PRODUCTION
43. TEMPERATURE
44. RAINFALL
45. WIND
46. SUNLIGHT
47. SOLAR RADIATION
48. BIOTIC FACTOR AND AGRICULTURAL PRODUCTION
49. PESTS
50. BIRDS
51. DISEASES
52. SOIL MICRO-ORGANISMS
53. SOIL PH
54. ROCK FORMATION
55. IGNEOUS ROCK
56. SEDIMENTARY ROCKS
57. METAMORPHIC
58. SOIL AND ITS FORMATION
59. FACTORS OF SOIL FORMATION
60. LIVING ORGANISM
61. PARENT MATERIALS
62. SOIL FORMATION TOPOGRAPHY
63. PROCESS OF SOIL FORMATION
64. WEATHERING
65. PHYSICAL WEATHERING
66. CHEMICAL WEATHERING
67. PRESSURE
68. WATER
73. BIOLOGICAL WEATHERING
74. CHEMICAL AND BIOLOGICAL COMPOSITION OF THE SOIL
75. SOIL WATER
76. MICRO AND MACRO NUTRIENTS
77. SOIL MICRO ORGANISM
78. PROPERTIES OF SOIL
79. SOIL STRUCTURE
80. SANDY SOIL CLAY SOIL
LOAMY SOIL

83. SOIL TEXTURE
84. IDENTIFICATION OF SOIL TYPES THROUGH EXPERIMENTS
85. RETENTION OF WATER BY VARIOUS SOIL TYPES
86. DETERMINATION OF SOIL PH REACTION
87. COLORIMETRIC DETERMINATION OF SOIL PH LEVEL
88. PH SOIL TEST
89. PLANT NUTRIENTS
90.
MACRO NUTRIENTS IN GENERAL
112. THE MAINTENANCE OF SOIL FERTILITY
113. CROP ROTATION
114. APPLICATION OF ORGANIC MANURE FARM YARD MANURE APPLICATION OF INORGANIC MANURE

118. FARMING PRACTICES
119. BUSH BURNING CLEARING
121. FERTILIZER APPLICATION
122. ORGANIC MANURING FARM YARD MANURE
124. HUMUS
125. COMPOST
126. CROP ROTATION
133. FARM POWER AND MACHINERY
134. SOURCES OF FARM POWER
135. HUMAN SOURCE
149. PLOUGHS
142. FIELD MACHINES
157. PLANTERS
164. SIMPLE FARM TOOLS
165. AGRICULTURAL MECHANIZATION
166. THE CONCEPT OF MECHANIZATION





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