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.

Yo guys I'M BACK XD. This time I will be researching on photonics. It involves the emission, transmission, modulation, signal processing, switching, amplification, detection and sensing of light. Hence this shows that photons are neither particles nor waves. — they are different in that they have both particle and wave nature.The term photonics developed as an outgrowth of the first practical semiconductor light emitters invented in the early 1960s and optical fibers developed in the 1970s.
The term appeared first in the 1960s to describe a field of research that deals with light to perform functions dealing with electronics such as telecommunications and information processing. Applications of photonics are ubiquitous. Included are all areas from everyday life to the most advanced science, e.g. light detection, telecommunications, information processing, lighting, metrology, spectroscopy, holography, medicine (surgery, vision correction, endoscopy, health monitoring), military technology, laser material processing, visual art, biophotonics, agriculture, and robotics.
The science of photonics includes investigation of the emission, transmission, amplification, detection, and modulation of light.In the near future, after much research, it should be abl;e to help us on our daily lives.

Hi guys this time I will be researching on something called stem cell research. Recently, scientists have discovered special kinds of cells in the body that differs from the rest of the cell in the body. Stem cells can be found in multi-cellular organisms, and they have the ability to become different types of cells in the body. The study and the use of stem cells is indeed an exciting new area of biology. There are 2 kinds of stem cells: adult stem cell and embryonic stem cells.
The adult stem cells can only be found in a few parts of the body--the brain, the eyes, the blood, bone marrow(inside bones), muscle and skin.Adult stem cells in these areas replace cells that are lost and damaged through injury or disease. They can be used to replace skin cells naturally lost. After donating blood, stem cells in the blood and bone marrow replace the lost blood cells.
The embryonic stem cells can develop into any kind of cell in the body. This happens naturally when the body is developing in the uterus; all the different kinds of cell in its body com from its embryonic stem cells. Scientists do remove the embryonic stem cells from younger embryos(4-5 years old) and use the stem cells produced after growing it in a dish to change it into different kinds of adult cells. Adult stem cells cannot be grown in a dish.
Stem cells can help treat diseases by repairing or replacing damaged tissue. However, as the study of stem cells is a new scienccceonly a few diseases such as blood diseases can be treated. It could be use in the future to treat many diseases. However, many people are against the idea of using stem cells as some people thinks that killing a human embryo lowers the value of life. Others think that that is acceptable as the unused embryos will die naturally anyway.

Hi everyone, I will be researching on information about nanotechnology and its advances over the past few years. It involves the manipulation of structures at a molecular scale and is able to change the behaviour of materials. A nanometer is one-billionth of a meter. For perspective, consider that the diameter of a human hair is about 100,000 nanometers, whereas a red blood cell is about 2,500 nanometers and DNA is about 2.5 nanometers. So a nanometer is small indeed.
Over the years, nanotechnology has improved and had been very useful too. For example, nanotechnology is able to help create an organic light that proviodes an even better and energy-saving display on cellphones and laptops.In addition, through research, nanotechnology had also help create a sensor to detect a single deadly chemical weapon agent so that more deaths or injuries could be reduced by faster identification and prompt actions. Also, other areas of nanotechnology involves new bonding materials for dental equipment, highly-skid resistance tires and wear-resistant nanoceramic coatings or paints.
On the other hand, it is estimated that the number of people working for nanotechnology, will increase drastically in the next 15 years, indicating the growth of nanotechnology expected in the modern society. What's more, it is said to be able to treat cancer patients too! How ammazing!XD Nanotechnology is indeed beneficial to the society. Let's hope that it will be able to improve even more and help the world.

Sorry the dates and times of the posts are a bit screwed up...I just realised that when I was posting my progress on term 3.......I'm sorry but please bear with the mistake I had made......Thank you so much.....XD

I am extremely pleased with how I had done for this term. I scored a 31/40, which to my delight, is an A1 grade. Last term, I had only attained an A2 grade due to my complacency, much to my disappointment. Nevertheless, I resolved to study and revise as much as possible for this term. I went through the topics I was tested on again and again and also did a lot of exercises on the topics themselves. Fortunately, my hard work did pay off, and I manage to achieve a good A1 grade for this term. However the End-of Year examinations are round the corner, and I must not be over-confident or complacent and screw up my results again. Better start revising early for the examinations so that I would be fully prepared for this upcoming exams of vital improtance!! Hope I will be able to do well and score with flying colours!!=)

This time, we learned about elements, compounds and mixtures. We learnt how to differentiate between this three by using each of their characteristics. In addition, we learnt that there are also two types of mixtures: solutions and suspensions. Not only did we learn how to distinguish between a solution and a suspension, we also learned how to seperate them using methods such as distillation, filtration and chromatography. We also are able to identify different kinds of elements, compounds and mixtures in our daily lives.A lot of experiments have been carried out in the laboratory for this topic, and it is indeed very interesting!
Also we learnt about photosynthesis and respiration, two processes of utmost importance that plants and animals undergo respectively.(Plants also carries out respiration at all times of the day). Also, we learnt about pressure. It is indeed an enriching term this year, but it's just a little sad how hasty it is. Nevertheless, it's still a memorable term as always.

For term one, the topics covered was relatively easy and I understood the concepts well. Needless to say, a week before the test, I started revising hard for my Science and read through the chapters in the textbook five times so as to remember the concepts well. I had also revised my assessment books and worksheets so as to prepare myself better for the test. Presumably as a result for my hard work, I scored 31.5 upon 40 for my test, one of the few who had gotten A1 grades for the test. I was indeed very happy for myself, and hastened to tell my parents about the good news.
However, on term 2, I started to get complacent and even though I knew the concepts well, I did not really put in my effort to revise for my Science test then. I opnly went through my worksheets once and read the textbook twice only. Predictably and inevitably, I scored 28 marks out of 40, an A2 grade. It was evident that I had deproved. The mistakes made on my test paper was due mostly to carelessness as I did not make an effort to check carefully. Nevertheless, I must learn from my mistakes and striove for an a1 grade next term.

Indeed, just like last term, we had a very enjoyable and interesting Science lessons. We learnt how to take measurement from different instruments such as the vernier calipers (which is accurate to 0.1mm or0.01cm) , the metre rule, the measuring tape and the micrometer screw guage (which is accurate to the nearest 0.01mm or 0.001cm). Next, we proceeded to a topic called the kinetic model 0f matter. In this topic, we learnt about the three states of matter, and each of their specific characteristics. In addition, we also learnt about mass, weight and density, and their SI units. Through mathematical workings and formulaes, we can also derive each of the following given a certain set of data. We had also learnt about elements, compounds and mixtures, and a little on solutions and suspensions. This were currently the most complicated and complex topics I had seen, but we understood the topic after the teachers explained to us.

In Term 1, we had very enriching and meaningful science lessons on the introduction of Science itself. We were introduced to different types of science apparatus and had to learn how to draw precisely and accurately the drawings of each science equipment such as the conical flask and the tripod stand. In addition, we also learnt on the attitudes a scientist must have, such as being able to accept criticism, being open-minded, being curious,being humble, so on and so forth. In the later part of the term, we had tried out experiments using the different apparatus found in the laboratory too. We had also tried experiments using the Bunsen Burner too. It was indeed very interesting in learning how to use it but it should be also handled with care. On the other hand we also learned about the safety precautions that must be taken upon using the laboratory. It is definitely essential and must be applied when we are in the lab ourselves.