The Language of Waves
General Properties of Waves · Syllabus Topic 4 · Waves
Praxis Chapters 1, 2, 3… are our study sequence — mapped to Cambridge IGCSE topics but numbered for you. Complete a chapter, claim a badge, and download your certificate from the badge screen.
LAB = explore · PRAXIS = exam-ready · both free
General Properties of Waves · Syllabus Topic 4 · Waves
Rates of Reaction & Activation Energy · Syllabus Topic 6 · Rates
Cell Structure & Organisation · Syllabus Topic 2 · Cells
Cambridge numbers topics by subject (Physics Topic 4 = Waves). Praxis numbers your journey: Chapter 1, 2, 3… We started with high-yield exam topics across Physics, Chemistry, and Biology.
Complete every slice and the Prove paper, then claim your badge. You can set your name on the certificate when you download it — progress is saved on this device.
Free exploration labs still at The Lab →