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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 _______ develops during combustion reaction.

2. 
To prevent iron from _______, its surface is painted with oil or chromium.

3. 
The _______ change cannot be reversed.

4. 
In a solution, the substance that dissolves a solute, and is in more quantity is called a _______.

5. 
What type of change is it when metal expands on heating?

6. 
_______ change can be reversed.

7. 
When salt is dissolved in water, the water is

8. 
The change of milk into yogurt is.

9. 
The remains of dead organisms and waste matters disappear gradually through _______.

10. 
When the flame develops during combustion reaction, then it is called _______.

11. 
The change that occurs on the iron due to the action of oxygen and water is called _______.

12. 
The process in which bacteria and fungi decompose the dead bodies into simple components is called _______.

13. 
When salt is dissolved in water, the salt is ______

14. 
A solution having major quantity of solute is called _______ solution.

15. 
A change which results into a totally new material is called _______ change.

16. 
The change in which both appearance and composition so substance or matter changes are called _______ change.

17. 
Burning of paper is a _______ change.

18. 
In a solution, the substance that dissolves in liquid and is in less quantity is called a _______.

19. 
When solid or liquid things put into water and its particles dissolves uniformly to form a mixture called _______.

20. 
Iron + oxygen = _______

21. 
Which factor will NOT affect the dissolving of sugar in water?

22. 
There are _______ important components of solution.

23. 
A solution having minor quantity of solute is called _______ solution.

24. 
The rate of dissolving salt in water can be increased by:

25. 
Why a person painted his iron gate?

26. 
Which one is NOT a chemical change?

27. 
A change in which no new material is formed with different properties then such change is called a _______ change.