- 1. 1. ---------- defined as a systematic process of making an enquiry about the living and non-living things in our environment.
A) Observation
B) Medicine
C) Hypothesis
D) Science
- 2. 2. The Use of chemistry cut across improving the quality of life through the following except -----
A) Medicine
B) Pesticides
C) Jogging
D) Space science
- 3. 3. We have three main branches of chemistry which include the following except --------
A) Physical
B) Organic
C) Human
D) Inorganic
- 4. 4. -------- is the process of science which involves the sequence of making enquiries about an object under study.
A) Scientific method
B) Hypothesis
C) Questionnaire
D) Science
- 5. 5. The following are types of investigation to research and develop explanations for events in nature.
A) Descriptive investigation
B) Comparative investigation
C) Experimental investigation
D) Narrative investigation
- 6. 6. One of the following is not part of the steps of the scientific method:
A) Making observation
B) Defining the problem
C) Creating a problem
D) Forming a hypothesis
- 7. 7. Matters exist in three physical state except:
A) Gas
B) Solid
C) Liquid
D) Broth
- 8. 8. One of the following is not a physical property of matter
A) Melting point
B) Density
C) Hardness
D) Flammability
- 9. 9. One of the following is not a chemical property of matter.
A) Ability to rust
B) Density
C) Flammability
D) Reactivity
- 10. 10. All of the following are implications of bad scientific practices except:
A) Improved standard of living and economy of the nation
B) Can wipe out the entire humanity including plants and animals
C) Causes mental illness
D) Increase illness and may even lead to death
- 11. 11. --------- under any ordinary condition , maintains definite volume and shape.
A) Gas
B) Liquid
C) Broth
D) Solid
- 12. 12. One of the following is not a property of metals.
A) They are very brittle
B) They are ductile
C) They are good conductors of electricity
D) They are malleable
- 13. 13. One of the following is a characteristic of non-metal.
A) They are hard
B) The can rust
C) They are good conductors of heat
D) They have low density
- 14. 14. One of the following is not a use of metal.
A) For manufacturing of vehicles and aeroplane
B) They are used as insulators
C) For bridges and water tank
D) For making cooking utensils
- 15. 15. One of the following is not a use of non-metals
A) For handles of substances to protect against electrical shock
B) For making roofing sheets
C) For jewel and cutting material
D) Decorations of houses, buildings and furniture
- 16. 16. To convert solid to liquid, it undergoes ------------
- 17. 17. The process of conversion of solid to gas directly is called --------------
- 18. 18. Gas turns to liquid through a process called --------------
- 19. 19. Liquid is converted to gas through the process of -----------
- 20. 20. The hardest substance on earth is ------
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