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Class 4 Science Chapter 5 Test 2


Updated: 12 Jun 2022

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Welcome to your Class 4 Science Chapter 5 Test 2

1. 
When sound bounces back from an object (reflects) at a certain distance and we hear it again, it is called ____.

2. 
The symbol of Fahrenheit scale is _______

3. 
Sound needs some _________ to travel.

4. 
When the object is hot, its temperature _______

5. 
Doctors usually measure temperature in _______ scale.

6. 
A hard and smooth object ________ sound better.

7. 
The symbol of degree centigrade is _______

8. 
When the bulb of thermometer touches a hot object, the mercury or alcohol _______________

9. 
The sound reaches our ears through particles of the _______

10. 
In thermometer, ______ present in its bulb.

11. 
To hear a clear echo, the reflecting surface should be at least _______meters away from the source of sound.

12. 
The instrument used to measure temperature is called ______.

13. 
_________ use echo to catch its prey in darkness.


jawad khalil

jawad khalil

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