scientific technology

In term 1, we learn about the different types of scientific equipment found in the laboratory, such as the Bunsun Burner and the pipette. We had also experimented using the Bunsen Burner to observe the differences between a luminous flame and non-luminous flame. We used a ice-cream stick and placed it above the 2 different types of flames. The ice-cream stick was scorched immediately after coming into contact with the non-luminous flame. We were excited as it was the first time we were carrying out experiments like this. It was indeed enriching and fun, thanks to Mrs Chan.
In term 2, we were studying about measurements and their SI units, hence we were using the vernier calipers and micrometer screw gauge. We were taught how to use them and were tested in our examinations. In addition, we also learnt how to measure the external and internal diameter of a beaker. It was indeed very enriching nand memorable as we learnt more about the measuring equipment, their functions and hot to use them.
In term 3, we did several experiments on photosynthesis and respiration. We attempted to use iodine solution to test for starch of a leaf by heating it first and putting it in a beaker of alcohol for a period of time. The iodine will turn from brownish-red to dark-blue, showing that photosynthesis has indeed taken place in the leaf itslef. We learnt that the iodine is used for testing the presence of starch and it will turn dark-blue as a result of starch.