STEM Chemistry Elective Activity: SMART Program for Secondary 2 Students
On June 8, 2026, Associate Professor Dr. Wannapong Triampote conducted an exciting and engaging SMART Elective Subject Activity for Secondary 2 students enrolled in the SMART Elective Program. The activities took place from 10:20 a.m. to 2:35 p.m. and focused on developing students’ scientific inquiry, observation, and analytical skills through hands-on Chemistry STEM experiences.
The program consisted of three exciting activities:
1. Mystery Substance Investigation
Students were given a transparent white crystalline substance and challenged to identify it using their observation and testing skills. Through scientific investigation, they successfully discovered that the substance was Instant Snow, a superabsorbent polymer that expands dramatically when mixed with water.
2. Volcano Eruption Experiment
Students created their own model volcanoes using baking soda and citric acid. They observed a fascinating chemical reaction that produced carbon dioxide gas, simulating a volcanic eruption while learning about acid-base reactions.
3. Iodine Testing in Salt Samples
Using an iodine testing kit, students analyzed salt samples collected from 10 provinces across Thailand. They compared their findings with the national standard, which recommends an iodine content of 20–40 ppm.
The investigation included samples from provinces such as Phetchaburi, Bueng Kan, Samut Sakhon, Pattani, Nan, and Krabi. Through this activity, students gained a deeper understanding of nutrition, public health, and scientific testing methods.
The SMART STEM Chemistry activities provided students with valuable opportunities to apply scientific concepts through experimentation, critical thinking, and collaborative learning. We are proud of our students’ enthusiasm and active participation throughout the day.