Cambridge IGCSE  ·  Science

Understand it first. Then write it for full marks.

Every idea is explained in plain words, tried in a small lab, and finished with the cause → effect chain the examiner wants. Stay addicted, keep adding — one topic at a time.

Choose a subject Newest: Biology · Enzymes
Subjects
2
Live lessons
4
Syllabus topics
18
Fig. 0 One idea, two subjects Sweeping
T
300 K
mean speed
1.00 × at 300 K
hard hits
0 / s
Chemistryhotter → more collisions reach Eₐ → faster rate Physicsaverage kinetic energy ∝ absolute temperature

§1  Subjects

Pick a subject, keep adding.

Each subject follows its own Cambridge syllabus, topic by topic. Switch any time from the Menu, top right.

04Coming later

Mathematics

Number, algebra, geometry and statistics.

§2  How a topic works

Understand, try, remember.

Every topic in every subject has the same three steps, so you always know where you are. Here is one, from Electrolysis.

  1. i.

    Understand

    The idea in plain words, with the exam definition next to it.

    From the lesson

    “Electrolysis is the breakdown of an ionic compound, when molten or in aqueous solution, by passing an electric current through it.”

  2. ii.

    Experiment

    Change one thing in a small lab and read what just happened.

    Readings
    ElectrodeProduct
    cathode (−)lead
    anode (+)bromine
  3. iii.

    Interpret

    The cause → effect chains to remember, and one exam tip.

    Chain

    Pb²⁺ ionsto the cathodegain 2 electronslead forms

Your first topic takes five minutes.

No sign-up. Open a lesson and start — your progress stays on this device.

Start with Electrolysis or try the refraction lab