Assessment

 

1. Which one of the following shows sources of water?

   A. Rainfall, tap, well

   B. Tap, river, lake

   C. Rainfall, river, lake

   D. Dam, springs, tap

 

2. Which of the following is an artificial way of harvesting water? By using

   A. dams           B. wells

   C. rivers           D. lakes

 

3. Clean water can be obtained from muddy water through

   A. decanting

   B. making it soft water

   C. filtering

   D. addition of clean rain water

 

4. Hard water needs much more soap to lather than soft water because

   A. soap can dissolve in hard water easily

   B. hard water has more mineral salt than soft water

   C. soft water gets milky with soap

   D. hard water attracts soap in water

 

5. Water in the environment can be polluted by?

   A. changing  into water vapour

   B. changing into ice or snow

   C. being used badly

   D. the addition of certain things

 

6. Which of the following ways cannot make water safe for drinking?

   A. Distilation

   B. Filtering

   C. Treating with chlorine

   D. Boiling

 

7. Which one of the following statements does not show ways of conserving water?

   A. To harvest water for future use

   B. To use all until exhausted

   C. Improving the cleanliness of water

   D. Practicing good farming habits in the water catchments area

 

8. ______ is an example of an air borne disease.

    A. Bilharzia          B. Tuberculosis

    C. Typhoid           D. Cholera

 

9. Which one of the following is NOT a symptom of bilharzia?

   A. Blood in urine and faeces

   B. Abdominal pains

   C. Being anaemic

   D. Chronic diarrhoea

 

10. Which one of the following does NOT show why it is not good to use hard water?

   A. Make one to use more soap

   B. A lot of energy is used to scrub the clothes

   C. Forms lather easily

   D. Damage to utensils and water piper

 

11. The name given to the substance that is formed on water pipes by hard water is 

   A. foam                B. lather

   C. Scum               D. Scale

 

12. Hard water can be made safe by

   A. decanting               B. filtering

   C. distilling                 D. evaporating

 

13. Which of the following statements is NOT true?

   A. Soft water can be made hard

   B. Hard water can be made soft

   C. Boiling hard makes it soft

   D. Cooling soft water makes it hard

 

14.The best way to store water for using in the house is by storing in a

   A. dam         B. tank

   C. river         D. lake

 

15. Diseases spread by drinking contaminated water are called

   A. water borne diseases

   B. removing impurities from water

   C. contaminating water

   D. diseases caused through water

 

16. Water pollution is 

   A. boiling water

   B. removing impurities from water

   C. soft water that has been made hard

   D. hard water

 

17. Scum is 

   A.  the substance formed in pipes carrying hard water

   B. what forms when soap in hard water

   C. soft water that has been made hard

   D. hard water

 

18. Bilharzia is caused by 

   A. contaminated water

   B. snails in water

   C. muddy water

   D. water