Ã‚Â Ã¢â‚¬Å“God called the dry ground Ã¢â‚¬Ëœland,Ã¢â‚¬â„¢ and the gathered waters he called Ã¢â‚¬ËœseasÃ¢â‚¬â„¢.
And God saw that it was good.Ã¢â‚¬Â(Gen. 1:10)
In accordance with the HSC syllabus and outcomes (managing and monitoring waterways), IPEKA INTERNATIONAL CHRISTIAN SCHOOL year 12 Chemistry students were required to have a hands-on experience on water analysis.
Indonesian Institute of Science (LIPI) helped the students facilitate the required methods in determining water quality. Under the guidance and supervision of LIPIÃ¢â‚¬â„¢s appointed researchers, year 12 students performed water analysis to determine:
- water hardness, the amount of dissolved oxygen (DO) and biochemical oxygen demand (BOD) using volumetric method (titration)
- heavy metal content and turbidity using atomic absorption spectroscopy (AAS) and spectroscopy methods
- total dissolved solids (TDS) using gravimetric method
This practical work complemented the theoretical work that students learned in the HSC chemistry course as required in the syllabus.
The year 12 students visited LIPI on Wednesday, June 6th and were accompanied by three Chemistry teachers, Mr. Aldjento, Ms. Engelina, and Ms. Lany. The students got some valueable experiences from the practical work.