ASVAB General Science (GS) Practice Test

Try our free ASVAB General Science Practice Test that contains 25 questions from Biology, Earth Science, Chemistry, and Physics. The CAT-ASVAB contains 16 questions while P&P-ASVAB contains 25 questions from this section.

1. When did the space shuttle first fly?

 
 
 
 

2. Approximately what percentage of the average adult human body is composed of water?

 
 
 
 

3. Air is less dense than water because:

 
 
 
 

4. Which of the following device is used to measure electrical current?

 
 
 
 

5. What does the tilt of the Earth’s rotational axis toward or away from the sun cause?

 
 
 
 

6. Newton’s First Law of Motion, which states that objects in motion continue moving unless influenced by an external force, and objects at rest remain stationary unless influenced by an external force, is also known as the law of:

 
 
 
 

7. In the field of genetics, what term is used to refer to an organism’s appearance?

 
 
 
 

8. Which is not found in a cell?

 
 
 
 

9. Salt helps to melt ice because it:

 
 
 
 

10. What type of symbiotic relationship occurs when one member benefits while the other is harmed?

 
 
 
 

11. Which element is necessary in the formation of rust?

 
 
 
 

12. Which is not a part of the human eye?

 
 
 
 

13. What is the chemical formula of table salt?

 
 
 
 

14. Which of the following elements is a not a metal?

 
 
 
 

15. What is the world’s largest fish?

 
 
 
 

16. What is the principal gas in the Earth’s atmosphere?

 
 
 
 

17. What happens when a liquid becomes gas?

 
 
 
 

18. What liquid is neither acidic nor basic?

 
 
 
 

19. At what temperature Celsius does water boil?

 
 
 
 

20. Which of the following is equal to the atomic number of a chemical element?

 
 
 
 

21. 100° C is equal to:

 
 
 
 

22. In degrees Celsius, at what point does pure water freeze?

 
 
 
 

23. In common terms, H2O is known as:

 
 
 
 

24. In which atmospheric layer is the ozone layer located?

 
 
 
 

25. Which of the followings are not considered greenhouse gases?

 
 
 
 

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