Year 1999
Instructions on the Competition
For safety reasons, all experiments must be performed under the supervision of a school teacher/lecturer.
Junior Level
Potassium Nickel Sulphate
Dissolve 200g Potassium Sulphate and 200g Nickel sulphate Hexahydrate in
water.
Entries in the Junior Level will be judged on: Clarity, shape and yield of the crystal.
Senior Level
Barium Nitrate with 0.5% Methylene Blue(w/w)
Dissolve 200g Barium Nitrate with methylene blue in water.
Entries in the Senior Level will be judged on: Clarity, shape and yield of the crystal.
Open Level
In order to comete in the category, participating institutions should have submitted entries for the above categories.
Participants in this category are required to grow a crystal from any organic/organometallic compound of their choice.
The main objective of this category is to provide students with an opportunity to exercise their creativity individuality and scientific knowledge.
Entries in this level will be judged on: originality, chemical knowledge and quality of the crystal.
| Supplier | Telephone No. | Fax No. |
| Sino chemical Co Pte Ltd | 261-9311 | 264-2241 |
| Tee Hai Chem Pte Ltd | 862-5655 | 862-5855 |
| Merch (S) Pte Ltd | 863-1800 | 863-6800 |
| Sigma-Aldrich Pte Lte | 271-1089 | 271-1571 |
Winners List
Junior Category
First
Prize: Methodist Girls' School (Team 1
& Team 2)
Second
Prize: River Valley High School (Team 2)
Third
Prize: Commonwealth Secondary
School
Open Category
First Prize: Methodist Girls'
School (Team 2)
Second Prize: The Chinese High School
Third Prize:
National Junior College(Team 2)


![]()
| Crystal
Growing Homepage | Outreach Programme | Chemistry Homepage|