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Class 4 Science Chapter 3 Test 3

Welcome to your Class 4 Science Chapter 3 Test 3

1. 
Calcium, iron, sodium, chlorine, fluorine and iodine etc. are called.

2. 
What is cause of polio?

3. 
_______ percent of human body consists of water.

4. 
In which food most of the calcium is found?

5. 

6. 
Drinking polluted water may cause diseases like:

7. 
Different dust particles in air mix with rain water and make them _________

8. 
If you have flu then what will do to save yourself and other?

9. 
It is necessary for the prevention from contagious disease:

10. 
The process by which the particles present in water are separated by a filter is called ______.