Introduction to COSAS 2023

Students of local secondary schools are welcomed to join this program. The teacher nomination form and school application form (Eng)/(Chi) are required to sent to EDB.

Criteria for the Awards

To complete the activities for one seminar, students are expected to:

  • read / view the pre-seminar materials which explains some of the chemistry knowledge and concepts involved in the seminar
  • attend the online seminar
  • attain 50% marks from the online assessments of the seminar

The following awards will be given to the students:

Award Number of seminars completed
within the designated period
Bronze 3
Silver 6
Gold 9
Platinum 12
Diamond 18

Electronic certificates will be awarded by EDB accordingly.

Introduction to the HKMOOC Platform

How to check my progress

How to reset password

How to update my student record

Click here to access the form

Online Briefing Session, Circulars and Documents

The important presentations and documents of online briefing are available here for teacher reference.

Circular Documents

Delivered Seminars


Drinking Water Treatment

 Mr. CHOW Wo Ming (Water Supplies Department)


Air Quality Management Strategies for the Pearl River Delta Region

 Prof. Alexis LAU (HKUST)


Water Uptake of Atmospheric Particles: From the Millikan Oil Droplet Experiment to a Blue Sky

 Prof. Chak Keung CHAN (HKUST)


Science and the Aftermath of Fukushima Nuclear Plant Accident

 Prof. W. H. CHAN (HKBU)



 Prof. Kwok-yin WONG (HKPolyU)


The Importance of Water in Food Chemistry

 Dr. Vincent KO (CityU)


Colour Chemistry

 Dr Vincent KO (CityU)


Photodynamic Therapy - A Promising Strategy of Cancer Treatment

 Prof. Dennis K. P. NG (CUHK)


Synthetic Polymers in Modern Life

Speaker: Prof. To NGAI (CUHK)


Metals in Biological Systems

 Prof. T C LAU (CityU)


Food Chemistry and Food Safety

 Dr. Ka-sing LEUNG (HKPolyU)


Nanomaterials for Environmental and Energy Applications

 Prof. Jimmy C. YU (CUHK)


Molecules for Liquid Crystal Displays

 Prof. Wai Kin CHAN (HKU)


Conducting Polymers

 Prof. W.K. CHAN (HKU)


Display and Light Technology - LCD, LED and OLED

 Dr. Raymond Kwong


Chemistry and Material Science in our Daily Lives

 CK WU (3M)


From Senior Secondary Level Redox Concept to the Application of the Beauty of Chemistry

 Dr. Chi Keung Mak


Drug Discovery and Organic Chemistry

 Dr. Kendrew MAK (CUHK)

cantonese english

Symmetry, Asymmetry & Our Chiral World - A Personal Recollection on the 2001 Nobel Prize in Chemistry

 Prof. Albert LEE (HKBU)


A Journey to the Structural Determination of Organic Molecules: IR, MS and NMR Spectroscopy

 Dr. Fuk Yee KWONG (HKPolyU)


Instrumental Analysis of Food and Drugs

 Dr. Kendrew K. W. MAK, Dr. W. F. CHAN (CUHK)


Determination of Volatile Organic Compounds

 Mr Yau-tim WONG (Hong Kong Accreditation Service)


Chemistry in the Service of Mankind

 Dr. John Wai (WuXi AppTec)


New Definitions of SI units

 Dr. Eric TP SZE (HKMU)


The Future of Plastics



The Nano World




For general and content inquiry, please send us an email to addressing your full name and school name.

For technical inquiry, please send an email to addressing your full name and school name or share the question on the discussion board of HKMOOC.


  1. I've found that my personal information on email is wrong. Can I change it?

    Please send us your personal information on this form. We will contact you again after record is updated.

  2. I've forgot my login email address. What should I do?

    You should send us your personal information on this form. We will contact you again for account recovery.

  3. I've forgot my password. What should I do?

    You should follow the link of Forgot Password on the login page of the HKMOOC Platform. Submit your email address for resetting your password.

  4. How do I find my progress report?

    You should find your study progress from the Progress tab in the course site of COSAS 2023 after successful login. Teachers will also receive student progress reports by email.

Contact Us

Web Site:
Tel: 2358-8778
Fax: 2358-1477
Hong Kong Virtual University
c/o Department of Computer Science and Engineering
The Hong Kong University of Science and Technology
Clear Water Bay, Kowloon
Hong Kong