Reflection for Term 1 LSS

In term 1, we started on the topics of periodic table, atomic structure, chemical bonding. This term revolved around chemistry and this is my favorite aspect among the three different sciences, thus I paid close attention in class, so that I could learn as much as I could out of these chemistry subjects. And I indeed learnt many interesting things that I did not understand before, such as the properties of the first twenty elements of the periodic table, and the structures of each element in terms of the number of protons, neutrons and electrons, the way the elements bond chemically, through ionic bonding or covalent bonding. Through these topics of elements, I've understood that science is really everywhere around us and it is just so amazing to discover the mysteries behind many things that we cannot see with our naked eyes, such as atoms. When we just do an experiment by chemically bonding two elements together, we see a interesting reaction, but it is, to me, more interesting to find out the science behind how these elements combine to form this reaction. I enjoyed my term 1 lower secondary science, look forward to a new term of science, where I discover more things that hopefully interests me.

Reflection of Sabbatical in Term 2 (Learning Trial @ MacRitchie)

Last term, I attended a sabbatical which caught my attention because of the title and the sabbatical description. Basically, what we did there was the trial around Macritchie, to learn about the nature of the place, the history of how it became a vital place for Singapore to get our water from. We were guided by a trainer who was very experienced in talking about the biodiversity there. She took us around the trial and showed us much wildlife there. I was very amazed at how graceful those animals were, and how beautiful the plants were. Before this trial, I did not know how to appreciate nature, and missed out many things out there. Because, whenever I saw something there, I would just rush out there to catch a closer glance, however what I did not realise was that the animal would be threatened and would run away.

At the end of it all, we had a sharing of the pictures that we took along the trial, and we identified and examined each of the species that we took of. They were mostly insects and plants, however what interest me the most was the animal pictures that were taken there and some of them were: monkeys, mud skipper, fishes, turtles, etc... I also learnt the difference between a changeable lizard and a chameleon, and I would like the share this in this post.

A Changeable lizard looks like this:

A Chameleon looks like this:

Both of the species have the ability to change colour, therefore, many people mistaken the changeable lizard for chameleon. There is a difference between the two. Firstly, the changeable lizard is a local species, while the chameleon is not. Also, they have very different physical features. The chameleon has eyes that are more protruded and each eye is capable of rotating and focusing separately to observe different objects simultaneously, giving them a 360 degree vision around the body. Their feet, on first glance, look like there were only two toes. But a closer look shows that each foot has five toes with sharp claws that are fused into a group of two and a group of three, allowing Chameleons to grip tightly to narrow branches. Their long tongues can be extended out of the mouth rapidly for their insect prey. While, the changeable lizard has none of these features.