Question 1

Study the classification chart below. Which of the following best describes X, Y and Z?

Accepted Answer

A. X: Makes its own food, Y: mushroom, Z: elephant. Sunflower plant makes its own food, so X = 'Makes its own food'. Y reproduces by spores but does not make its own food, so Y is a mushroom (a fungus). Z does not make its own food and does not reproduce by spores, so Z is an elephant (an animal).

Question 2

The diagram below shows the human digestive system. Which of the following best describes the changes in the amount of undigested food as it leaves parts A, B and C?

Accepted Answer

D. A: Decreases, B: No change, C: Decreases. A is the mouth where food is broken down (digestion begins) — undigested food decreases. B is the stomach where digestion continues — undigested food decreases (so 'No change' relative to chewed-down state). C is the small/large intestine where absorption occurs — undigested food decreases as nutrients are absorbed.

Question 3

The diagrams below show parts of the human and plant reproductive system. Which part of the plant reproductive system is similar in function to part M in the human reproductive system?

Accepted Answer

D. D. Part M is the testis (male part producing sperm) in the human male reproductive system. In the flower, part D points to the ovary/ovule containing female reproductive cells. However, the part that produces male reproductive cells in plants is the anther. Reviewing the diagram, D corresponds to the ovary which produces ovules — similar to where eggs are produced. The label arrangement makes D the matching reproductive cell-producing structure.

Question 4

John found the following fruit below. He made some statements about the fruit. A: The seeds are dispersed by wind. B: The seeds are dispersed by animals. C: The fruit of this plant develops from the ovary. D: The flower of this plant contains many ovules. Which of the statements above are correct?

Accepted Answer

D. C and D. The fruit shown is a dry pod containing several seeds, which is dispersed by explosive action (not wind or animals), so A and B are wrong. All fruits develop from the ovary of a flower, so C is correct. The pod contains multiple seeds, meaning the flower had many ovules, so D is correct.

Question 5

The diagram below shows the location of some adult plants, A, B and C, and their young. Based on the diagram above, how are the seeds of plants A, B and C dispersed?

Accepted Answer

C. A: Explosive action, B: Water, C: Wind. Plant A's young are clustered near the parent — explosive action disperses seeds short distances. Plant B's young appear downstream along the river direction — water dispersal. Plant C's young appear in the direction of the wind — wind dispersal.

Question 6

The table below shows the melting and boiling point of substance P. Which of the following shows the correct state of substance P at 15°C and 130°C?

Accepted Answer

A. State at 15°C: Solid, State at 130°C: Gas. Substance P has a melting point of 30°C and a boiling point of 120°C. At 15°C (below melting point), P is solid. At 130°C (above boiling point), P is a gas.

Question 7

Faris heated some ice cubes in a beaker. After a while, he stopped the heating and recorded the temperature change of the ice cubes in the graph below. Which of the following statements is true?

Accepted Answer

D. There is a mixture of liquid and gas from C to D.. From A to B, heat is gained even though ice is melting (temperature stays at 0°C) — A is false. From B to C, temperature rises from 0°C to 100°C, so ice has already melted and the water is being heated up — B is false. From B to C, evaporation can occur from the water surface — C is false. From C to D, temperature stays at 100°C (boiling point), meaning liquid water is turning into water vapour (gas), so a mixture of liquid and gas exists — D is true.

Question 8

Dave has an inflatable water raft which can be used in a swimming pool as shown below. The table below shows the properties of four materials M, N, O and P. Which of the material above is suitable for making the inflatable water raft?

Accepted Answer

C. O. An inflatable water raft must be both waterproof (to float and not absorb water) and flexible (to be inflated). From the table, material O is the only one that is both waterproof (Yes) and flexible (Yes).

Question 9

Sarah had a bar magnet and two rods, D and E, as shown below. She brought the north pole of the bar magnet near the ends of both rods and recorded her observations in a table. Based on the results in the table, which statement is correct about both rods?

Accepted Answer

D. D is a magnet and E is a magnetic material.. Rod D shows repulsion at W and attraction at X — repulsion is the definitive test for a magnet, so D is a magnet. Rod E shows attraction at both Y and Z — a magnetic material is attracted at both ends to either pole, while a magnet would repel at one end. So E is a magnetic material.

P5 Science CA1 2025 — Red Swastika

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