For P5, PSLE, Sec 1 & Sec 2 (G2) — made in Singapore
Understand the science and lab it out!
Labs, quests and answer practice. Your child tries an experiment, sees what happens, then practises explaining it the way Booklet B asks for it.
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Question 1 · Electrical circuits
[2 marks]P5 / PSLE · Electrical systems
The diagram shows two identical bulbs, A and B. Choose a circuit, then predict what happens to bulb B when bulb A is removed.
(a) When bulb A is removed, bulb B will…
Pick your book
new chapters and questions go in every week
12 foundation chapters with labs, quests and practice. Covers P3–P6 concepts.
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Available now: Energy Conversion, Forces, Interactions within the Environment, Photosynthesis & Energy from the Sun. More PSLE topics will follow.
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Particles, cells, light and how scientists work.
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Heat transfer, chemical changes, and forces and energy.
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Sorted the way the PSLE is
Every chapter sits under one of the five syllabus themes, so revision lines up with the exam.
- Diversity
- Cycles
- Systems
- Interactions
- Energy
The labs are the fun part.
Real screens from the site. Kids change one thing, watch what happens, and get asked why.




How a chapter goes
Nine short stages, one idea at a time. Then a timed Boss. Finished? Do it again on Challenger, with harder, exam-style questions.
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- Boss
(timed!)
Revision notes
In every chapter, for when a question goes wrong.
Speed rounds
Beat your own best time on a chapter.
Answer Writing
Practise full written answers, the way Booklet B asks. Rolling out chapter by chapter.
A little encouragement at home
Meet Quest Board.
Set family quests and agree the rewards together. Check the work, give the reward, and keep track of what’s next.
You can also enable a points shop for your own rewards. Light Quest learning points and levels stay unchanged.

For parents
- It’s free.
- No ads, no fees, nothing to upgrade to.
- It follows the syllabus.
- Chapters follow the MOE 2023 Primary Science syllabus and the five PSLE themes.
- You can see the work.
- Parent view shows chapter progress and the written answers your child practised.
- Rewards you choose.
- Create family quests and optionally let your child redeem Light Quest points for your own rewards. Explore Quest Board →
- We’re honest about what we know.
- Predict, test, explain, come back later: the method draws on published research. We haven’t measured its effect on results yet. How we build it →