JSS 2 Basic Science Essay Exam Questions

First Term Essay Questions

1a. Name three major habitats.
1b. give examples of living things found in different habitants.
1c. state five (5) factors necessary for growth in animals.
1d. list three (3) examples of developmental changes in infants, adolescents and adults.

2a. Define chemicals.
2b. state two (2) classes of chemicals.
2c. list three (3) examples of each of the classes of chemicals.
2d. mention three (3) safety measures in the use of chemicals.

3a. calculate the power of a man whose work is measured as 60joules in 10 seconds.
3b. if a force of 20 Newton is applied to a body to move it through a distance of 5 meters. Calculate the work done.
3c. Calculate the work done if a mass of 40Kg is raised through a vertical height of 3 meters. (take acceleration due to gravity to be 10m/s2)

4a. State three statements of kinetic theory of matter.
4b. use the kinetic theory to explain why a solid has a definite shape and a liquid has none.
4c. state the difference between boiling and evaporation.
4d. State two factors that affect evaporation.

5a. Define the following terms;
(i) work (ii) energy (iii) power
5b. Explain the meaning of potential energy and kinetic energy.
6a. Define drug abuse.
6b. State three effects of drug abuse.
6c. List five examples of drugs that are commonly abused.

Second Term Essay Questions

1a. Define Skeleton.
1b. State 4 functions of the skeleton.
1c. Define the following;
(i) Cartilage (ii) Ligament
1d. List three organs that are involved in respiration.
1d. What is the end product of the following? (i) Glucose(ii) Proteins.

2a. Define respiration.
2b. List three respiratory diseases.
2c. Distinguish between inhalation and exhalation.
2d. Name three blood vessels.

3a. Define the circulatory system.
3b. List three blood diseases.
3c. Name the instrument used by medical doctors to listen to patient’s heart beat.
3d. Give four functions of blood.

4a. Define digestion.
4b. List two digestion enzymes and give one function for each.
4c. Write the dental formula for an adult human being.
4d. What is the function of the following reagents:
(i) sudan (ii) million’s reagent (iii) iodine solution.

5a. Define excretion.
5b. List three excretory organs and their functions.
5c. Distinguish between excretion and egestion.
5d. Give two examples of excretory products.
6a. Define reproduction.
6b. Name(i).two male reproductive organs(ii).two female reproductive organs.
6c. State four functions of the liver.

Third Term Essay Questions

1a. what do you understand by family geneology.
1b. State three importance of family traits.
1c. state 2 differences between dominant and recessive traits.
1d. Give three traits that can be inherited.

2a.Define Hydrocarbons.
2b.Give three examples of petrochemicals (3marks)
2c.State one use for each of the following
(i) petrol (ii) kerosene (iii) paraffin wax.
2d. State 2 uses of petrochemical.
3a. Define habitat (2marks)
3b. Name 3 kinds of Habitat.
3c. Give 3 differences between physical and chemical changes.

3d. State two factors necessary for growth.
4a. Define skeleton.
4b. State 3 functions of skeleton.
4c. Name 3 diseases of the skeletal system.
4d. Name 2 kinds of movable joints.

5a. Define Reproduction.
5b. Name 3 parts of
(i) male reproductive organ
(ii) female reproductive organ.
5c. Name 2 blood diseases.
6a. what is a machine?
6b. List 3 modes of heat transfer.
6c. list 3 factors that affect evaporation.
6d. Give 2 differences between boiling and evaporation.

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