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Class 5 Science Chapter 5 Test 2

Welcome to your Class 5 Science Chapter 5 Test 2

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1. 
The process in which bacteria and fungi decompose the dead bodies into simple components is called _______.

2. 
When solid or liquid things put into water and its particles dissolves uniformly to form a mixture called _______.

3. 
Which factor will NOT affect the dissolving of sugar in water?

4. 
The change that occurs on the iron due to the action of oxygen and water is called _______.

5. 
_______ change can be reversed.

6. 
When salt is dissolved in water, the water is

7. 
Iron + oxygen = _______

8. 
Why a person painted his iron gate?

9. 
The rate of dissolving salt in water can be increased by:

10. 
The remains of dead organisms and waste matters disappear gradually through _______.

11. 
A solution having major quantity of solute is called _______ solution.

12. 
There are _______ important components of solution.

13. 
The _______ develops during combustion reaction.

14. 
To prevent iron from _______, its surface is painted with oil or chromium.

15. 
A solution having minor quantity of solute is called _______ solution.

16. 
A change in which no new material is formed with different properties then such change is called a _______ change.

17. 
Burning of paper is a _______ change.

18. 
The _______ change cannot be reversed.

19. 
The change in which both appearance and composition so substance or matter changes are called _______ change.

20. 
What type of change is it when metal expands on heating?

21. 
When the flame develops during combustion reaction, then it is called _______.

22. 
Which one is NOT a chemical change?

23. 
A change which results into a totally new material is called _______ change.

24. 
The change of milk into yogurt is.

25. 
In a solution, the substance that dissolves in liquid and is in less quantity is called a _______.

26. 
In a solution, the substance that dissolves a solute, and is in more quantity is called a _______.

27. 
When salt is dissolved in water, the salt is ______