CXC CSEC Integrated Science — Paper 1 (Multiple Choice)
Total marks: 60 · Duration: 75 minutes
Instructions to candidates
- Answer ALL questions in this section.
- Write your answers on the Multiple Choice Answer Sheet provided.
- Each question is worth THREE (3) marks.
- For each question, choose the ONE option (A, B, C or D) which best answers the question.
- Use an HB pencil to mark your answers on the answer sheet. Erase all mistakes completely.
- Silent, non-programmable calculators may be used.
- The use of cellular phones is NOT permitted in the examination room.
Paper
Section A — Multiple Choice (60 marks)
1. Which of the following represents a compound?
A) Oxygen gas in the atmosphere
B) A mixture of sand and water
C) Table salt dissolved in water
D) Carbon dioxide in a sealed container
2. A student measured the mass of a copper block as 178.5 g and its volume as 20 cm³. What is the density of the copper block?
A) 3.57 g/cm³
B) 8.93 g/cm³
C) 17.85 g/cm³
D) 158.5 g/cm³
3. The diagram below shows the digestive system of a mammal.
[The oesophagus leads to organ X, which connects to the small intestine. The liver is connected to organ X by a tube.]
Which organ is labelled X?
A) Stomach
B) Pancreas
C) Large intestine
D) Gall bladder
4. A farmer in St. Vincent observes that plants growing near a volcano have yellow leaves and stunted growth. Which nutrient deficiency is MOST likely responsible for these symptoms?
A) Nitrogen
B) Phosphorus
C) Potassium
D) Calcium
5. Which of the following energy transformations occurs in a solar panel?
A) Chemical energy to electrical energy
B) Light energy to electrical energy
C) Electrical energy to heat energy
D) Kinetic energy to electrical energy
6. A ball is thrown vertically upward. At the highest point of its path, which statement is TRUE?
A) The velocity is maximum and acceleration is zero
B) The velocity is zero and acceleration is 9.8 m/s² downward
C) Both velocity and acceleration are zero
D) The velocity is zero and acceleration is 9.8 m/s² upward
7. Which type of rock is formed when magma cools and solidifies beneath the Earth's surface?
A) Sedimentary
B) Metamorphic
C) Igneous intrusive
D) Igneous extrusive
8. The blood vessels that carry blood AWAY from the heart are called:
A) Veins
B) Arteries
C) Capillaries
D) Venules
9. In a food chain, primary consumers are organisms that:
A) Produce their own food through photosynthesis
B) Feed directly on producers
C) Feed on secondary consumers
D) Break down dead organic matter
10. A student sets up an experiment with three identical plants. Plant A receives normal watering, Plant B receives no water, and Plant C is placed in a dark cupboard with normal watering. After one week, which plant is MOST likely to show wilting?
A) Plant A only
B) Plant B only
C) Plant C only
D) Both Plant B and Plant C
11. The chemical formula for sulfuric acid is:
A) HCl
B) H₂SO₄
C) HNO₃
D) H₂CO₃
12. Which of the following is an example of a physical change?
A) Burning wood
B) Rusting of iron
C) Melting ice
D) Digestion of food
13. The process by which green plants lose water vapour through their leaves is called:
A) Respiration
B) Transpiration
C) Translocation
D) Photosynthesis
14. A circuit contains a 12 V battery connected to a resistor. If the current flowing through the circuit is 2 A, what is the resistance of the resistor?
A) 6 Ω
B) 10 Ω
C) 14 Ω
D) 24 Ω
15. Which gas is produced when an acid reacts with a metal carbonate?
A) Oxygen
B) Hydrogen
C) Carbon dioxide
D) Nitrogen
16. In Jamaica, bauxite is mined and processed to produce:
A) Iron
B) Copper
C) Aluminium
D) Zinc
17. The diagram shows a wave.
[A wave is shown with wavelength of 4 m and amplitude of 2 m. Five complete waves pass a point in 10 seconds.]
What is the frequency of the wave?
A) 0.2 Hz
B) 0.5 Hz
C) 2 Hz
D) 5 Hz
18. Which component of blood is responsible for fighting infections?
A) Red blood cells
B) White blood cells
C) Platelets
D) Plasma
19. A farmer plants leguminous crops such as pigeon peas to improve soil fertility. This practice is beneficial because leguminous plants:
A) Prevent soil erosion
B) Fix atmospheric nitrogen in the soil
C) Reduce the soil pH
D) Increase water retention
20. The table below shows the pH values of four solutions.
| Solution | pH |
|---|---|
| W | 2 |
| X | 7 |
| Y | 9 |
| Z | 14 |
Which solution is the STRONGEST alkali?
A) Solution W
B) Solution X
C) Solution Y
D) Solution Z