Experience with Science Exhibition

Everyday, we taught in different school. After lunch, we carried out a science exhibition in the respective primary school. We displayed 6 different exhibitions, such as Milk, Volcano, Circuit, Illusions, Static, and Rocket.

Initially, the school will gather all students at the assembly yard. Each I.C. from every exhibition came up to the stage to describe about their exhibition in cartoon form. This is to attract attention of the primary students, for example, the milk exhibition. Wei Soung showed a paper with a few roll of cows. He explained that there are many bonding between molecules in the milk just like the few cows holding hands. As with the different dyes that are to drip onto the milk, it is like wearing the cows with different kinds of colors. In order to carry out the exhibition, ear bud with soap is dipped into the milk, soap break the bonding between the molecules, and this caused the color on the milk expanded. This incident can be explained as the evil soap monster bitten the cow hands, the cows have to release their hands and run to escape from the evil monster. Using this way, children can understand the scientific reaction in an easier manner.

After presentation from all I.C., we went back to the assigned booth and set up the exhibits. Students were to visit all the exhibits group by group. At each exhibit, students carried out the experiment by themselves. This can help them understand it better. They read the detailed explanation displayed, and asked us questions to clear the doubts in mind. At the same time, there were teachers walking controlling the crowd, some teachers also asked us for the explanation so they also understand and helped us to explain to more students.

While all exhibitions were going on, there was a most popular exhibition going on its own periodic. That is the Rocket Launcher. It is a gas pump rocket. Water filled inside the rocket. Rocket was always launched in the direction away from the crowd. We kept clear the place where the rocket might land. Keng Fei pumped gas into the rocket to increase the gas pressure in it. When release d it, the rocket can fly vertically upward and landed on the 5th floor building roof. This exhibition created a gigantic “WOW” effect. Students were so shocked seeing the rocket flied so high. It got full attention from students to see the every rocket launching. They even screamed to help us countdown for the launching. When counting down, students kept getting excited and stand at the dangerous position. We took all safety factors to ensure the students’ safety.

Volcano explained about the reaction between acid and base, which we used brown vinegar and soda powder. This reaction produced a lot of brown color bubbly liquid which represent its lava. Circuit exhibition used the alarm theory. Students were to use the handle with a circular head to pass through a set of bent wire. The circular should not touch the wire, or else the alarm will sound. Static is also a fun experiment. We used a balloon to rub onto the student’s hair. Then, we used the charged balloon to pull the drinking can. Students were also given chances to try rubbing the balloon themselves on their head to carry out this experiment. About the Illusions, we have members explaining all things that students can see from the pictures. Students got excited when they failed to see everything from the pictures.

After the science exhibition, students will rush to us for signature. They were so excited to see us. They respect us very much. So, we gave them our signature and words of encouragement hoping it will help they will put more effort in studies.