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Class 4 Science Chapter 7 Test 2

Welcome to your Class 4 Science Chapter 7 Test 2

1. 
Dinosaurs are now_______.

2. 
_______is/are called non-renewable resources.

3. 
______ are used to make wires, coins, jewelry and utensils.

4. 
Coal, petrol, diesel and natural gas take ______ of years to form

5. 
Glass is made from:

6. 
Coal, petrol, diesel and natural gas are ______ resources.

7. 
An example of non-renewable sources is:

8. 
Remains of dead animals and plants found in the earth are called

9. 
About what percentage of the Earth’s surface is land?

10. 
______ were lizards like giant animals.

11. 
Recycling saves natural resources by making things________.

12. 
The imprints or remains of many organisms that do not exist in this world now are known as______.

13. 
______ are simple solid chemical substances which are present in the earth.

14. 
The skeletons of many ancient animals are still preserved in:

15. 
Those unlimited resources which can be replaced after use are called _____resources.

16. 
The lavish use of natural resources is causing irreparable ______ to our environment.

17. 
Fossils are found under ______

18. 
Those resources which cannot be replaced by new ones easily are called ______ resources

19. 
To make things reusable is called:

20. 
Some renewable resources are used as ______ substitutes.