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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…

← tick a box first

Pick your book

new chapters and questions go in every week

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.

Circuit Lab: a circuit with two batteries, one bulb in series and two bulbs on parallel branches.
Build it. Then blow a bulb on purpose.Circuit Lab
Light Lab: two torches shine past a ball onto a screen, with shadow measurements.
Move the torch closer. Why does the shadow grow?Light Lab
Heat Lab: a beaker of ice being heated next to a temperature graph that goes flat at 0 and 100 degrees.
Heat the ice. The line goes flat — twice. Why?Heat Lab
Energy Lab: a ball on an adjustable roller-coaster track with live energy bars.
Shape the hills. Where does the energy go?Energy Lab

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. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 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.

Quest Board list view showing demo family tasks, their rewards and each child’s progress.
The family’s quests, in a listDemo family · View larger

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 →

Pick one chapter. Start with one question.