20 JSS3 Third Term Basic Science questions with options and answers:
Question: Which organelle is responsible for energy production in a cell?
A) Nucleus
B) Mitochondria
C) Endoplasmic reticulum
D) Golgi apparatus
Answer: B) Mitochondria
Question: What is the pH level of a neutral substance?
A) 0
B) 7
C) 14
D) 10
Answer: B) 7
Question: What is the function of the cerebrum in the brain?
A) Coordination of movements
B) Control of emotions and thoughts
C) Regulation of heartbeat
D) Digestion of food
Answer: B) Control of emotions and thoughts
Question: In the periodic table, which element has the symbol ‘Fe’?
A) Iron
B) Gold
C) Silver
D) Mercury
Answer: A) Iron
Question: What is the process of water moving from an area of high concentration to an area of low concentration through a semi-permeable membrane?
A) Osmosis
B) Diffusion
C) Evaporation
D) Filtration
Answer: A) Osmosis
Question: What is the SI unit of pressure?
A) Pascal
B) Newton
C) Joule
D) Watt
Answer: A) Pascal
Question: What is the function of the thyroid gland in the human body?
A) Regulation of blood sugar
B) Control of metabolism
C) Production of insulin
D) Filtration of blood
Answer: B) Control of metabolism
Question: Which planet is known as the “Blue Planet”?
A) Earth
B) Neptune
C) Uranus
D) Venus
Answer: A) Earth
Question: What is the chemical symbol for potassium?
A) K
B) P
C) Ko
D) Kr
Answer: A) K
Question: What is the function of the alveoli in the respiratory system?
A) Exchange of gases
B) Pumping blood
C) Digestion of food
D) Filtration of blood
Answer: A) Exchange of gases
Question: Which layer of the Earth’s atmosphere contains the ozone layer?
A) Troposphere
B) Stratosphere
C) Mesosphere
D) Thermosphere
Answer: B) Stratosphere
Question: What is the main component of Earth’s crust?
A) Iron
B) Oxygen
C) Silicon
D) Gold
Answer: C) Silicon
Question: What is the process of converting light energy into electrical energy in solar cells?
A) Reflection
B) Refraction
C) Photosynthesis
D) Photovoltaic
Answer: D) Photovoltaic
Question: Which gas is produced during photosynthesis?
A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Hydrogen
Answer: A) Oxygen
Question: What is the function of the nephrons in the kidneys?
A) Filtration of blood
B) Production of red blood cells
C) Digestion of proteins
D) Regulation of body temperature
Answer: A) Filtration of blood
Question: What is the chemical formula for table salt?
A) NaCl
B) KCl
C) HCl
D) CaCl2
Answer: A) NaCl
Question: Which process involves the conversion of sugar into alcohol and carbon dioxide by yeast?
A) Respiration
B) Fermentation
C) Photosynthesis
D) Combustion
Answer: B) Fermentation
Question: What is the function of the cornea in the human eye?
A) Controlling the amount of light entering the eye
B) Focusing light onto the retina
C) Producing tears
D) Changing the shape of the lens
Answer: A) Controlling the amount of light entering the eye
Question: Which of the following is a greenhouse gas?
A) Nitrogen
B) Oxygen
C) Carbon dioxide
D) Hydrogen
Answer: C) Carbon dioxide
Question: What is the purpose of the ear’s eustachian tube?
A) Balancing pressure in the ear
B) Transmitting sound waves
C) Controlling taste sensations
D) Filtering dust particles
Answer: A) Balancing pressure in the ear.
FAQs
What topics are usually covered in JSS3 Third Term Basic Science past questions and answers?
JSS3 Third Term Basic Science past questions typically cover topics like acids and bases, energy forms, light and sound, human body systems, plants and their environments, and simple chemical reactions. The questions are designed to test understanding of concepts taught during the term and may include multiple-choice, short-answer, and structured questions.
How can students effectively use JSS3 Third Term Basic Science past questions and answers for exam preparation?
Students can use past questions to familiarize themselves with the exam format, identify frequently asked questions, and practice time management. Reviewing the answers helps in understanding the correct approaches to solving problems, clarifying misconceptions, and reinforcing key concepts learned during the term.
Where can I access reliable JSS3 Third Term Basic Science past questions and answers?
Reliable past questions and answers can be obtained from school-provided resources, educational publishers, online academic portals, and past exam compilations specifically designed for JSS3 students. It is important to ensure the sources are credible and aligned with the current syllabus to maximize their usefulness.
Do JSS3 Third Term Basic Science past questions include practical or experimental questions?
Yes, some past questions may include practical-based or experimental questions that test students’ understanding of scientific procedures, observation skills, and the ability to interpret results. These questions are intended to assess both theoretical knowledge and practical application of basic science concepts.
Also Read: JSS1 Second Term Basic Science Past Questions and Answers
