Good afternoon, everyone!
My name is Francis, and in today’s tutorial, we’ll go over past questions in Basic Science and Technology for the National Common Entrance Examination (NCEE). These questions are carefully selected and broken down with full explanations to help you pass the NCEE 2025 in one sitting!
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You can watch the full class in the video below:
Question 1: Which of the following is a source of heat energy?
Options:
A) Mirror
B) Candle
C) Glass
D) Chalk
Correct Answer: B) Candle
Explanation: Candle produces heat when it burns. Mirrors and glass do not generate heat. Chalk is a solid and does not produce energy.
Question 2: The sun is a natural source of _____?
Options:
A) Sound
B) Light and Heat
C) Water
D) Electricity
Correct Answer: B) Light and Heat
Explanation: The sun radiates both light and thermal (heat) energy naturally.
Question 3: Which tool is used to measure temperature?
Options:
A) Speedometer
B) Thermometer
C) Barometer
D) Hydrometer
Correct Answer: B) Thermometer
Explanation: Thermometers are instruments designed to measure temperature. Speedometers measure speed, barometers measure atmospheric pressure, and hydrometers measure the density of liquids.
Question 4: What is the process where water turns to vapor?
Options:
A) Freezing
B) Evaporation
C) Condensation
D) Melting
Correct Answer: B) Evaporation
Explanation: Evaporation is when heat causes water to change from liquid to vapor.
- Freezing turns liquid to solid (e.g., water to ice)
- Melting turns solid to liquid
- Condensation turns gas to liquid
Question 5: Which of these is a solid material?
Options:
A) Petrol
B) Iron
C) Water
D) Oxygen
Correct Answer: B) Iron
Explanation: Iron is a solid with fixed shape and volume. Petrol and water are liquids. Oxygen is a gas.
Question 6: Which part of a plant carries out photosynthesis?
Options:
A) Roots
B) Leaf
C) Flower
D) Stem
Correct Answer: B) Leaf
Explanation: Leaves contain chlorophyll, the green pigment that captures sunlight, making them the primary site of photosynthesis.
Question 7: Which of these is NOT a simple machine?
Options:
A) Screw
B) Engine
C) Pulley
D) Lever
Correct Answer: B) Engine
Explanation: While screws, pulleys, and levers are all simple machines that make work easier, engines are complex machines made up of many parts.
Watch more educational videos and past questions: https://youtube.com/@allcbts
Why This Matters
Preparing with actual exam-like questions builds your confidence, sharpens your logic, and makes revision more effective. Understanding concepts like heat energy, photosynthesis, evaporation, and tools of measurement gives you the edge in NCEE 2025 and beyond.
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