Examination on Basic Science
Class: Primary 5
Term: Third Term
Time: 1 Hour
Total Marks: 70

SECTION A: OBJECTIVES (40 Marks)
Instruction: Answer all questions.

1. ________ is a solid mineral material forming part of the surface of the earth. (a) Water (b) Rock (c) Soil (d) Air
2. Which of these is not a type of rock? (a) Igneous (b) Metamorphic (c) Sedimentary (d) Liquid
3. The process of making soap is called ________. (a) Oxidation (b) Saponification (c) Fermentation (d) Evaporation
4. An example of a Nigerian rock landmark is ________. (a) River Niger (b) Aso Rock (c) Kainji Dam (d) Lekki Beach
5. Which of the following is NOT a property of an acid? (a) Sour taste (b) Corrosive (c) Slippery feel (d) Turns blue litmus red
6. All of these are local materials for soap making except ________. (a) Palm oil (b) Ashes (c) Caustic soda (d) Coconut oil
7. The main reason we use soap is for ________. (a) Eating (b) Cleaning (c) Playing (d) Sleeping
8. Rocks like sandstone and limestone are examples of ________ rocks. (a) Igneous (b) Metamorphic (c) Sedimentary (d) Volcanic
9. Which of the following substances turns red litmus paper blue? (a) Lemon juice (b) Vinegar (c) Soap solution (d) Battery acid
10. The correct step to test for an acid using litmus paper is to observe if blue litmus paper turns ________. (a) Green (b) Yellow (c) Red (d) Black
11. What taste is characteristic of most bases? (a) Sweet (b) Salty (c) Bitter (d) Sour
12. Zuma Rock is found in which state of Nigeria? (a) Lagos (b) Ogun (c) Niger (d) Kaduna
13. Which type of rock is formed from the cooling and solidification of molten magma? (a) Sedimentary (b) Metamorphic (c) Igneous (d) All of the above
14. When making local soap, palm oil is used to provide ________. (a) Colour (b) Hardness (c) Foam (d) Fat
15. Acids are generally known to be ________. (a) Slippery (b) Bitter (c) Corrosive (d) Non-reactive
16. Olumo Rock is a famous tourist attraction located in ________ State. (a) Oyo (b) Ogun (c) Osun (d) Ekiti
17. ________ is a product of soap making used for personal hygiene. (a) Detergent (b) Shampoo (c) Soap (d) Bleach
18. A substance that turns blue litmus paper red is likely an ________. (a) Base (b) Acid (c) Neutral solution (d) Salt
19. Which of the following rocks is formed from the transformation of existing rocks due to heat and pressure? (a) Sedimentary (b) Igneous (c) Metamorphic (d) Volcanic
20. A common use of acids is in ________. (a) Making soap (b) Cleaning floors (c) Car batteries (d) Washing clothes

SECTION B: THEORY (30 Marks)
Instruction: Answer any THREE questions.

1. (a) Define what a rock is. (2 marks)
(b) List three (3) types of rocks. (3 marks)
(c) State three (3) uses of rocks in our daily lives. (3 marks)
(d) Name any two (2) major rock landmarks in Nigeria. (2 marks)

2. (a) What are acids? (2 marks)
(b) Give three (3) physical properties of bases. (3 marks)
(c) Describe the litmus test for identifying an acid. (3 marks)
(d) Name two (2) examples of common bases. (2 marks)

3. (a) List two (2) local materials used for making soap. (2 marks)
(b) Explain the main purpose of making and using soap. (3 marks)
(c) Describe two (2) features of sedimentary rocks. (3 marks)
(d) State one (1) use of metamorphic rocks. (2 marks)

4. (a) Give two (2) examples of common acids. (2 marks)
(b) State three (3) uses of acids. (3 marks)
(c) What is the effect of a base on red litmus paper? (3 marks)
(d) Name two (2) features of metamorphic rocks. (2 marks)

Objective Marking Scheme

Question 1 – ✅ (b) Rock
Question 2 – ✅ (d) Liquid
Question 3 – ✅ (b) Saponification
Question 4 – ✅ (b) Aso Rock
Question 5 – ✅ (c) Slippery feel
Question 6 – ✅ (c) Caustic soda
Question 7 – ✅ (b) Cleaning
Question 8 – ✅ (c) Sedimentary
Question 9 – ✅ (c) Soap solution
Question 10 – ✅ (c) Red
Question 11 – ✅ (c) Bitter
Question 12 – ✅ (c) Niger
Question 13 – ✅ (c) Igneous
Question 14 – ✅ (d) Fat
Question 15 – ✅ (c) Corrosive
Question 16 – ✅ (b) Ogun
Question 17 – ✅ (c) Soap
Question 18 – ✅ (b) Acid
Question 19 – ✅ (c) Metamorphic
Question 20 – ✅ (c) Car batteries