Past question of junior waec Basic science and technology for last year?

I'm sorry, but I do not have access to specific past questions from the junior waec Basic Science and Technology exam for last year. However, you can try contacting your school or the examination board for past question papers.

BASIC SCIENCE AND TECHNOLOGY (JUNIOR WAEC) PAST QUESTIONS 2021

SECTION A: Objective Test

1. Which of the following is a conductor of heat?
(a) Wood
(b) Plastic
(c) Metal
(d) Paper

2. The process by which plants make their own food is called:
(a) Respiration
(b) Photosynthesis
(c) Combustion
(d) Digestion

3. Which of the following is a renewable energy source?
(a) Coal
(b) Natural gas
(c) Solar energy
(d) Petroleum

4. The force that pulls objects towards the earth is called:
(a) Friction
(b) Gravity
(c) Magnetism
(d) Electricity

5. Which of the following is NOT a part of the respiratory system?
(a) Lungs
(b) Liver
(c) Trachea
(d) Nasal cavity

SECTION B: Essay

1. (a) Explain the process of photosynthesis.
(b) State two importance of photosynthesis.

2. (a) Describe the structure of the human heart.
(b) Explain how blood circulates through the body.

3. (a) What is a simple machine? Give two examples.
(b) State three advantages of using simple machines.

4. (a) Explain the difference between a food chain and a food web.
(b) Draw a food chain showing the interdependence of organisms.

5. (a) What are the environmental impacts of deforestation?
(b) Suggest three ways to conserve forests.