Singapore PSLE Practice Test 2026

About the Singapore PSLE exam

The Primary School Leaving Examination (Singapore PSLE) is a school assessment examination administered in Singapore. It is designed to assess candidates' knowledge and proficiency across 4 key subject areas including English, Mathematics, Science, Mother Tongue. This exam is widely recognized as an essential benchmark for students and professionals.

Use short Singapore PSLE practice sets to identify topics to revisit. Choose a subject and difficulty, answer questions, then review the explanations. New accounts get 30 question credits; further new questions use paid credits. Retaking previously seen questions is free.

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Singapore PSLE — quick answers

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8 free Singapore PSLE practice questions (2026)

Answer these first — no signup, no card. Every answer is explained. For more practice, sign up for 30 free question credits and choose a subject above.

1. Which of the following correctly describes a difference between the transport system in plants and the circulatory system in humans?

   • The plant transport system has no pump, but the human circulatory system has a heart to pump substances.
   • The plant transport system transports digested food, but the human circulatory system only transports gases.
   • Water is transported upwards and downwards in plants, but blood only flows in one direction in humans.
   • Plant transport tubes are made of living cells, but human blood vessels are made of non-living cells.
   Show answer & explanation

   Answer: A. The plant transport system has no pump, but the human circulatory system has a heart to pump substances.

   Plants do not have a pumping organ like a heart; instead, transport relies on transpiration pull and root pressure. In contrast, the human circulatory system uses the heart to pump blood throughout the body.

   Topic: Science · medium

2. An electric circuit is set up with three bulbs, B1, B2, and B3, and three switches, S1, S2, and S3. B1 and S1 are connected in series on one branch. B2 and S2 are connected in series on a second parallel branch. This parallel combination of branches is connected in series with B3, S3, and a battery. If S1 and S3 are closed but S2 is open, which of the bulbs will light up?

   • B1 only
   • B1 and B3 only
   • B2 and B3 only
   • B1, B2 and B3
   Show answer & explanation

   Answer: B. B1 and B3 only

   With S2 open, the branch with B2 is an open circuit, so B2 does not light up. Since S1 is closed, the branch with B1 is closed. Since S3 is closed, the main loop is completed, allowing current to flow through B1 and B3.

   Topic: Science · medium

3. Melvin wanted to find out how the surface area of a container affects the rate of evaporation of water. He used four containers, P, Q, R, and S, with the following parameters: Container P: Surface area 20 cm², containing 100 ml water Container Q: Surface area 40 cm², containing 100 ml water Container R: Surface area 20 cm², containing 150 ml water Container S: Surface area 40 cm², containing 150 ml water Which two containers should he choose for a fair test?

   • P and Q
   • P and R
   • Q and R
   • Q and S
   Show answer & explanation

   Answer: A. P and Q

   To investigate the effect of surface area, only the surface area should be changed (independent variable), while other variables like the starting volume of water must be kept constant (controlled variables). Comparing P and Q keeps the volume of water at 100 ml while changing the surface area.

   Topic: Science · medium

4. The mangrove nipah palm grows in soft mud where oxygen levels are low. It has a network of wide, shallow roots. How do these roots help the nipah palm survive in its environment?

   • To absorb water from deep underground.
   • To anchor the plant firmly in the soft mud and help it obtain atmospheric air.
   • To store excess food produced during photosynthesis.
   • To reduce water loss through transpiration.
   Show answer & explanation

   Answer: B. To anchor the plant firmly in the soft mud and help it obtain atmospheric air.

   Wide, shallow roots in mangrove environments provide stability in the soft, unstable mud and allow access to air near the surface, where oxygen levels are higher than deep in the waterlogged soil.

   Topic: Science · easy

5. Four metal rods, W, X, Y, and Z, of the same length and thickness, were coated with the same amount of wax. The rods were heated at one end with the same heat source. The time taken for the wax to melt completely on each rod was recorded: Rod W: 45 seconds Rod X: 120 seconds Rod Y: 15 seconds Rod Z: 80 seconds Which of the following shows the metals arranged from the poorest conductor of heat to the best conductor of heat?

   • Y, W, Z, X
   • X, Z, W, Y
   • Y, Z, W, X
   • X, W, Z, Y
   Show answer & explanation

   Answer: B. X, Z, W, Y

   A poorer conductor of heat transfers heat slower, meaning the wax will take a longer time to melt. Rod X took the longest time (120s), so it is the poorest conductor, while Rod Y took the shortest time (15s), so it is the best conductor.

   Topic: Science · easy

6. A scientist removed the nucleus of a single-celled organism. He then kept the cell under optimal environmental conditions and observed it for a week. Which of the following is most likely to happen to the cell?

   • The cell will immediately burst due to uncontrolled water intake.
   • The cell will continue to grow and divide normally.
   • The cell will survive for a short period but will not be able to grow, reproduce, or repair itself, eventually dying.
   • The cell wall will break down, causing the cell contents to spill out.
   Show answer & explanation

   Answer: C. The cell will survive for a short period but will not be able to grow, reproduce, or repair itself, eventually dying.

   The nucleus controls all cellular activities, including growth, repair, and reproduction. Without a nucleus, the cell cannot carry out these essential life processes and will eventually die, though it may survive temporarily on existing proteins.

   Topic: Science · medium

7. A ball is released from Point A at the top of a frictionless curved track. It rolls down to Point B (the lowest point of the track) and then rolls up to Point C, which is at the same height as Point A. Which of the following statements about the energy of the ball is correct?

   • The kinetic energy at B is equal to the gravitational potential energy at A.
   • The gravitational potential energy at C is greater than the kinetic energy at B.
   • The total mechanical energy of the ball is greatest at Point B.
   • The kinetic energy of the ball increases as it rolls from B to C.
   Show answer & explanation

   Answer: A. The kinetic energy at B is equal to the gravitational potential energy at A.

   On a frictionless track, no mechanical energy is lost as heat or sound. Therefore, all gravitational potential energy at the highest point A is fully converted into kinetic energy at the lowest point B.

   Topic: Science · hard

8. An investigation was carried out to study the dispersal of seeds of two different plants, X and Y. The distance of the young plants from the parent plant was recorded. Seeds of X were found mostly within 2 meters of the parent plant. Seeds of Y were found up to 50 meters away, mostly in the direction of the wind. What are the likely dispersal methods for X and Y?

   • X is dispersed by animals; Y is dispersed by water.
   • X is dispersed by explosive action; Y is dispersed by wind.
   • X is dispersed by wind; Y is dispersed by animals.
   • X is dispersed by explosive action; Y is dispersed by animals.
   Show answer & explanation

   Answer: B. X is dispersed by explosive action; Y is dispersed by wind.

   Seeds dispersed by explosive action (X) land close to the parent plant (usually within a few meters). Seeds dispersed by wind (Y) can travel far, and their distribution pattern follows the direction of the wind.

   Topic: Science · medium

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Singapore PSLE Exam Subjects

Available practice subjects: English, Mathematics, Science, Mother Tongue. Select a subject for focused preparation. Coverage is not a guarantee of the complete official syllabus.

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