Chemistry,
Taught From The Syllabus
Cambridge IGCSE Chemistry for Year 10 and Year 11: 12 syllabus topics, a tutor, Ole Kalau, anchored to them, exam-style questions marked with the reasons, and a Practice Buddy for the past papers you bring. Plus the Chemistry Lab in 3D for the practical paper.
The Syllabus, Topic By Topic
The 12 topics the Cambridge IGCSE Chemistry lessons on CognitaSTEM cover, in teaching order. Each one is a lesson, a set of exam-style questions and a tutor who knows exactly where you are.
- States of matter
- Acids, bases and salts
- Atoms, elements and compounds
- The Periodic Table
- Stoichiometry
- Metals
- Electrochemistry
- Chemistry of the environment
- Chemical energetics
- Organic chemistry
- Chemical reactions
- Experimental techniques and chemical analysis
How You Learn It
OLE KALAU, YOUR CHEMISTRY TUTOR
A subject tutor anchored to the Cambridge IGCSE Chemistry syllabus. Ask by voice or text at any hour; the answer is taught from the topics below and worked on a board you can read back.
PRACTICE BUDDY
Upload the past paper or mark scheme you have and the buddy takes you through it question by question, marks your answers and explains what the examiner wanted. No paper to hand? It sets questions from the syllabus instead.
WORKED ON THE BOARD
Every explanation is written out on an interactive board as it is spoken: the equation, the diagram, the essay plan. Read it back, copy it into your notes, ask for it another way.
THE CHEMISTRY LAB IN 3D
Practical work on a 3D bench, marked on the server from what you actually do: the skills the IGCSE practical papers test. Reset it and run it again as often as you need.
Year 10 And Year 11
IGCSE Chemistry runs across Year 10 (IGCSE 1) and Year 11 (IGCSE 2). A learner picks up in whichever year they are in, and the tutor keeps to that year's part of the syllabus unless asked to look ahead or back.
Homeschooling? The same tutor, labs and buddies work for a child learning at home; a parent sees every session from the parent dashboard.
Questions
Which IGCSE Chemistry topics are covered?
All 12 listed above, from "States of matter" to "Experimental techniques and chemical analysis". They follow the Cambridge syllabus for Year 10 and Year 11.
Can I do the Chemistry practicals online?
Yes. The Chemistry Lab runs practicals on a 3D bench with real apparatus and marks the method, the readings and the conclusion, so you rehearse the practical paper's skills before you sit it. See the IGCSE practicals page for the full list.
Where do the answers come from?
From the Cambridge IGCSE syllabus and the files you upload, and nothing else. The tutors and buddies are grounded in the syllabus topics listed on these pages and in the past papers, notes and mark schemes you give them; they do not invent facts or pull from the open internet. Your syllabus and your files are the only truth they teach from.
Is this free?
A free account gives you the tutors with a daily allowance, the 3D labs and the Practice Buddies. Premium adds unlimited tutor time; the pricing page has the current price in Kenyan shillings, and schools and homeschooling families pay the same.
Does it work on a phone?
Yes. Everything runs in the browser on an ordinary smartphone over mobile data, including the 3D labs, which are built for low-end phones.
Do you register candidates for the exams?
No. Cambridge IGCSE exams are sat at a registered Cambridge school or exam centre; homeschooled learners enter as private candidates. CognitaSTEM teaches and revises the syllabus and tells you exactly where a learner stands before the exam.