
Check out IGCSE Chemistry full course details here.
Testimonials:
I have scored 6A*s and 1A
I would like to take this opportunity to express how grateful I feel for your support. Thank you very much for helping me along the way and for creating an online revision course that I believe has helped countless numbers of students all around the world. Thank you to those wonderful teachers behind the screen, for providing your support with every step of the way, by putting together those intriguing presentations and videos.
My results had come out on the 11th of August and with a smile on my face, I would love to tell you that I have scored 6 A*s and 1 A. This wouldn't have been possible without your endless support.
Best wishes,

Shamini Vinodya De Silva
UAE
Shamini Vinodya De Silva
UAE

I got A* in English

Nawal Amir
Saudi Arabia
Nawal Amir
Saudi Arabia

She did very well in her exams
We enrolled our oldest daughter for the Chemistry and Physics Revision
Courses. She loved the material and found it very helpful and
extremely interesting. She did very well in her exams. We therefore
decided also to enrol our younger daughter. She will be doing the
Chemistry and English.
So to all of you who worked so hard in putting this helpful revision
course together, a huge THANK YOU!

Annelie Titan
South Africa
Annelie Titan
South Africa

This website has been a great help for my IG’s.

Nadine Younes
Kuwait
Nadine Younes
Kuwait

I scored 2A*s in Physics and Chemistry

SHAMINI DE SILVA
UAE
SHAMINI DE SILVA
UAE

We had good experiences with our first son
and want to book as well for our second son.

Juergen Rode
Germany
Juergen Rode
Germany

I was able to achieve 3A*’S and 4A’s in the 7 subjects I attempted
Thank you for all your love and support!! Thanks to you, I was able to achieve 3A*'s and 4A's in the 7 subjects I attempted . Thank you for calming me down and listening to all my questions and updating the site regularly with past papers and for all your revision courses. I will miss your updates dearly as this marks my last visit to this website. Keep up the excellent work!!

Harsh Aryan
India
Harsh Aryan
India

Excellent.

Roy Szeto
Hong Kong
Roy Szeto
Hong Kong

Complete and interesting

Alvin Fujito
Indonesia
Alvin Fujito
Indonesia

I like your program very, very much

Pia Engelberts
Germany/France
Pia Engelberts
Germany/France

I got 6 A* & 1 A. It would not be possible without the online courses available here.

W.U.H
United Arab Emirates
W.U.H
United Arab Emirates

I Got 4A* and 2A
Thank you for all the help on this website and the revision classes.
Alhamdulillah I got 4A* (Biology, Chemistry, Physics and Maths) and 2As (English as 2nd Lang and Accounting)
Thank you for all your help, surely an amazing website, would love to have a similar one for A levels.
Thank you!"

Haneea Yasir
UAE
Haneea Yasir
UAE

Thank you for your courses

Jeena Jelani Jan
India
Jeena Jelani Jan
India

I am the the world topper in all seven subjects

Nihar Narsana
India
Nihar Narsana
India

My marks are improving at school

Aaran
UK
Aaran
UK

The explanation was clear

Sara Salman
South Africa
Sara Salman
South Africa

The videos are very useful

Sivam
UK
Sivam
UK

I really suggest those like me to join this course

Louisa Wibisono
Indonesia
Louisa Wibisono
Indonesia

I got 5A* This site helped me after everyone lost hope in me!

Kanishka Bhindora
India
Kanishka Bhindora
India

I am eagerly await to get A*

Waed Gherwash
Turkey
Waed Gherwash
Turkey

Passed her exams with high grades including A*.
exams with high grades including A*.

Monika Schumann-Carter
UK
Monika Schumann-Carter
UK

I got A* and A’s

Nadine Younes
Kuwait
Nadine Younes
Kuwait

My boys love your programmes very much

Teresa Kum
Hong Kong
Teresa Kum
Hong Kong

It is worth every penny spent
It is worth every penny spent. I would be more than happy to advice all my friends to look up your site and purchase your revision courses in order to help their children as well.

Anna & Estevao Hermann
Brazil
Anna & Estevao Hermann
Brazil

I feel an improvement in my writing style

Nawal Amir
Saudi Arabia
Nawal Amir
Saudi Arabia

Amazing course
I am now really confident in writing my IGCSE ESL Exam thanks to you.

Ahmed Ibrahim
Kuwait
Ahmed Ibrahim
Kuwait

I got 5A*s and 1A

Somya Damania
India
Somya Damania
India

I got grade A* in my English mocks

Nawal Amir
Saudi Arabia
Nawal Amir
Saudi Arabia

I got 4A*s and 2As!
Alhamdulillah I got 4A* (Biology, Chemistry, Physics and Maths) and 2As (English as 2nd Lang and Accounting).
Thank you for all your help, surely and amazing website, would love to have a similar one for A levels.
Thank you!

Haneea Yasir
Haneea Yasir

I got 3As and 1B
I would like to thank you for your help last year with my IGCSE. I got : Maths A, Physics A, Chemistry B, Biology A! These were the subjects you helped me with and really I wouldn't be able to be confident without your courses help. Much thanks!

Alhussien Rehan
Egypt
Alhussien Rehan
Egypt

Performed better in the exam

Devenedra Singh
India
Devenedra Singh
India

I got 9 A*s and 1 A!

Yee Kwan
Hong Kong
Yee Kwan
Hong Kong

It was very organized and easy to understand

Karen Younes
Kuwait
Karen Younes
Kuwait

I received 6A*s and 3As

Deidre R. Sagonda
Zimbabwe
Deidre R. Sagonda
Zimbabwe

You have my trust

Yao Jie
Hungary
Yao Jie
Hungary

I achieved 15A* from 15 subjects!

Arun Joseph
Botswana
Arun Joseph
Botswana

Happy with the course

Cindy Yao
Hong Kong
Cindy Yao
Hong Kong

I realized all my mistakes
Ur videos have helped me a lot and I realized all my mistakes and will try my best not to repeat them again. Thank you so much!!

A. Fatim
Egypt
A. Fatim
Egypt

Amazing content!
It really helped me! Thanks!

Saoud Eshaq
Qatar
Saoud Eshaq
Qatar

You helped me achieve 5A*s
I would like to take this opportunity to express how grateful I feel for your support. Thank you very much for helping me along the way and for creating an online revision course that I believe has helped countless numbers of students all around the world.
Thank you to those wonderful teachers behind the screen, for providing your support with every step of the way, by putting together those intriguing presentations and videos.
Thank you again for every thing. You helped me achieve 5A* in one section.

Mohamed Essam
Egypt
Mohamed Essam
Egypt

I got 5A*! This site helped me after everyone lost hope in me!

Kanishka Bhindora
India
Kanishka Bhindora
India

Extremely well organised, intensive, focused and importantly, time management
While the program was intensive and focused on the finer aspects of language skills, I firmly believe that it has also taught him some very important life skills - the first and foremost being time management.
Advance planning and a workable schedule for the duration of the course made the target achievable in a very comfortable manner. At no point of time did he feel as if he was rushed, this is in addition to being in the school basketball team , keyboard player in the band and other extracurricular activities. I will not hesitate to recommend these revision classes to my friends. Continue the good work, IGCSE Team.

Chandrika Kannan
USA
Chandrika Kannan
USA

My brother got A’s and A*s
2017, so I want to apply for online revision courses.

Jeet
Ghana
Jeet
Ghana

Confidence has been instilled
I am writing to sincerely express my gratitude for the wonderful job that you TEAM are doing to ensure OUR children perform well in their exams. From the bottom of my heart, I am truly grateful. What I am grateful about is that this exercise has boosted his confidence to a level I had not seen before in the subjects that he took his revision in. Grades may say otherwise but for me that confidence has been instilled outside his usual classroom setting.
To any parents considering registering their children for this revision, I can attest that this revision is worth it not only to make the children get good grades but to also re-assure them that they just need the confidence to believe in themselves.
With many thanks,

Petronilla
Switzerland
Petronilla
Switzerland

I got 5A*s and 1A

Somya Damania
India
Somya Damania
India

This is not just advertising that it is possible to reach an A+… It is reality!
We booked your courses for my 14 year old daughter and we are all highly surprised about the great support and also about the results! Congratulations to your big work! We will definitely book more and also when time comes for our younger daughter!
We have a really really good private school here in Germany with very engaged teachers but your system is so great what we never expected. Also our daughter already was a good student, but she now learns much more effective and is the best student in the courses we booked in her class! This is not just advertising that it is possible to reach an A+...it is reality! Thank you for that!

Carola Engelberts
Germany/France
Carola Engelberts
Germany/France

I just aced the paper 2 English exam
I wanted to thank your team for all the advice they gave me including examiners tips and tricks. I used all the techniques learnt in the course and can't stop congratulating the team. I feel that I just aced the paper 2 English exam.
Eagerly waiting for the results...
Regards,

Vishal Varadraj
UK
Vishal Varadraj
UK

Every resource you provided was really helpful and understandable

NJR
NJR

Comprehensive and Supportive Course

Amir Ijaz
Saudi Arabia
Amir Ijaz
Saudi Arabia

I got ALL A*s!

Ananya
Singapore
Ananya
Singapore

Q&A Session
Leave your questions at the comment section below. Our subject matter experts will answer them.
* Please visit this page regularly for your answers.
Is there space lessons?
Hi Seoyeon,
Please elaborate more about your question. Are you referring to Astronomy and Cosmology?
Best regards,
Chemistry Department
Hi,Ive been struggling with stoichometry and organic chemistry a lottt?so if you had any websites that would be really helpful for me to improve itd be amazing.And if it was for coordinated sciences 0654 then even better!!!
Dear Saanvi,
Thanks for reaching us!
Stoichiometry allows us to predict the outcome of a reaction or else to determine how reactants need to be engaged to yield any particular amount of products. The difficulties faced in solving stoichiometric problems can be overcome by having a clear and correct understanding of the mole concept, balancing chemical reactions, finding the limiting reagent, and mastering problem-solving strategies. You can definitely improve the latter by practicing! Use these as keywords to find more related questions (or websites), and practice more! If there’s any concept that you cannot understand or any step that you find hard, feel free to write to us. We are more than happy to help you! You can also try the past paper questions, which are more structured and relevant.
Four general steps of solving a stoichiometric problem:
1. Write the balanced equation
2. Find the number of moles of the given substance (this can be either a reactant or a product, according to your question)
3. Find the molar ratio to calculate the number of moles of the wanted substance (The correct balanced equation should accompany this step.
Therefore, you shouldn’t have a hard time balancing a chemical equation.)
4. Convert moles of the wanted substance into desired units according to your question (Eg: grams)
For Organic Chemistry, you can try making a short note or writing the reactions on a paper until you are thorough with that. Online video tutorials, too, can help you.
We hope this helps!
We believe that “where there’s a will, there’s a way!”. So keep being focused! All the best!
Best Regards,
Chemistry Department
thankyou so much!!
Dear Saanvi,
We are always here to help you!
Best Regards,
Chemistry Department
Hi there, my question is in reference to paper 0620/43/m/j/18, Q no 6 part c iii); why does HClO3 disassociates in water as H3O+ and ClO3-, instead of H+ And ClO3-. Also, can u tell me which acids and alkalis partially disassociates and fully disassociate to form ions? Also in 0620/63/m/j/18,Qno 3part e), can the answer be ester instead of fuel as they r also colourless, pleasant smelling and burn with blue flame.
Thank you
Nawalamir
Hi Nawalamir,
Thanks for reaching us, we are happy to help you!
As you have mentioned it is true that HCLO3 dissociates into H+ and CLO3-, when you completely forget or ignore the aqueous solution. In reality, when the hydrogen cation (H+) is released into water it will be bound to a water molecule through a coordinate covalent bond and forms H3O+. This H3O+ ion is called the hydronium cation. In the acid-base chemistry, both H+ and H3O+ are interchangeable. But, for 0620/43/m/j/18, Q no 6 part c iii) the answer has to be H3O+ since H2O is given on the left-hand side of the equation and the equation has to be balanced. In case if you write H+ the equation will not be properly balanced.
Strong acids (HCl, HNO3, H2SO4, HCLO3, HCLO4, etc) and bases (KOH, NaOH, Ba(OH)2, etc), fully dissociate whereas weak acids (CH3COOH – acetic acid, H2C2O4 – oxalic acid, etc) and bases (ammonia, pyridine, etc) partially dissociate.
Yes, for 0620/63/m/j/18, Q no 3 part e) you will be given marks for writing either fuel or an organic compound.
Hope this helps! We are here for you!
Best Regards,
Chemistry Department
Are all the IGCSE past exam papers to be purchased. I previously downloaded some of their past papers from for free and i really hope those ones are not bogus. is their one particular place i am supposed to download the past exam papers from and are all others websites concerning this fake.
Hello there,
You may download past exam papers here: https://www.igcsecentre.com/cambridge-igcse-past-exam-papers/. They are updated until the March 2020 series. Furthermore, there’s no purchase needed to download the past papers.
Thank you.
Are you still posting these free lessons. if yes, then i have already subscribed to it. how do i get informed on when these videos are going to be published.
Hello Treasure,
Once you subscribe to our newsletter you will be notified for the upcoming schedule of our online lessons and Q&A sessions.
Thank you.