Term 1

Reflection of term 1 test:
I think I had done quite well but there is still room for improvement. 3 ways to improve myself:

1. Read widely from various sources such as the Internet, encyclopedias and science magazines
2. Do more research on various topics taught after each lesson
3. Do not be complacent.
Why do I say so? I learned a lesson in last year PSLE Science paper. In my three years of primary science examinations, I did very well, always scoring high A*. Because of these achievements, I became complacent and thus slack a bit in my preparation. As a result, I only scored a A grade for PSLE science examination.

The things I learned in Term 1:
Basically, I learned the following:

1. Laboratory rules(The Do's and Don'ts when in a laboratory)
2. Get to know the apparatus found in a laboratory and their functions and learned how to draw them
3. The different types of flames( luminous and non-luminous) and their differences and how to draw and label the different parts of a flame
4. How to plot a graph
5. The different types of variables( Independent variable, dependent variable and constant variable)
6. The Anatomy of a Bunsen Burner
7. The functions of the different parts of a Bunsen Burner
8. The steps to light a Bunsen burner, heating a liquid in a beaker and heating a liquid in a test-tube
9. The different symbols which symbolise different hazards
10. How to prevent a Strike Back from occurring
11. How to read the volume of a liquid in a measuring cylinder accurately(reading it at the same level of the water level)
12. Mass, weight and density

Reflection on the lesson taught in Term 1. Any good suggestions to improve the lessons?

I feel that the lessons are quite interesting. The lessons are enriched and could be understood easily. But I feel that more time should be spent on doing experiments because I think that it will make us learn better as it is hands-on.

What I wish to learn in term 2
I wish to learn several topics such as:

Diversity:
(Physics and Chemistry)
Classification of matter:
-States of matter
-Kinetic Theory of Matter

Interactions:
(Chemistry)
-Elements, compounds and mixtures
-Solutions and suspensions
-how to draw a solubility graph and interpret it
-separation techniques such as filtration, distillation and chromatography

Biology:
-about leeches
-about endangered animals and their diet, behaviour

Miscellaneous:
-earth facts
-biofuels
-water facts
-NEWater

What improvement I would want to see in term 2:
I would want to get a higher A1 for science like 90 and above for all tests( I would try my best). I would widen my knowledge by reading more science magazines and pay attention in class.


Field trips
I went to the metrology station on 9th March, 2010. I think that the trip was very meaningful and helpful to me.

What I learned:
I just found out that the word "metrology" means units of measurement. The metrology station has several laboratories: the mass and weight laboratory, the humidity laboratory, the thermometer laboratory and the laser laboratory. I will describe what I saw in each laboratory and show you some pictures I took during the trip.

The mass and weight laboratory
Image(108).jpg This is a normal weighing scale. Basically, if we want to measure the mass of an item, just place it on thee weighing scale.

Image(107).jpg This is a vacuum weighing machine. However, the professor did not demonstrate how it works for safety reasons.

Image(105).jpg This is an ancient weighing balance. I shall explain how it works. For example, if we want to find out which item is heavier, we put both items on the metal plate. The item that is heavier will go downwards and the lighter item item will go upwards.

Image(109).jpg This is a poster about primary mass standards. I heard from the professor that there is a 1kg metal hidden and locked somewhere secret in the metrology station. The reason why is because this will affect the Singapore's standard 1kg.

The humidity laboratory
Image(116).jpg This is a hygrometer used to measure the humidity in the air.

Image(115).jpg This is a two-pressure humidity generator to calibrate a hygrometer which are instruments used to measure the relative humidity in the air.
Image(114).jpg This is a poster about the two pressure humidity generator.

The thermometer laboratory
Image(120).jpg This a "no contact" thermometer. How does it work? Just please down the trigger and direct the red light on your forehead, then the thermometer will receive the data(your current temperature).


Image(117).jpg
This is a calibration process. The thermometer is turned on and it will measure the temperature of the hot water. The temperature of the hot water is taken down. Then a machine is turned on and it will measure the temperature of the water by putting a heat sensor into the water. Then a comparison is made between the two temperatures. If the temperature matched, the thermometer is accurate. If the temperature does not match, then the professors have to adjust the thermometer.

Image(118).jpg This is the machine with the heat sensor.

Image(122).jpgThis is a calibration machine for the infrared ear thermometer.
The laser laboratory
Image(110).jpg
There are several lasers and mirrors on this platform. The mirrors will reflect the laser light into a light sensor and the light sensor will measure the intensity of the light and transfer the data into a computer.

Image(112).jpg This is a laser generator. The laser is generated bu fuel. Fuel produces electricity and electricity produces light.

My reflections:
I feel that this trip was helpful to me in a sense that it could widen my knowledge of things in the world.
At first, I did not know that Singapore had a 1kg metal hidden somewhere unknown. But I came to know about it after the trip. It is very important and is kept in a safe place as it would affect Singapore's standard 1kg if "disturbed".
1 kilogram is actually based on a piece of metal. Every fifty to one hundred years the metrology scientists will clean it and this causes the metal to be a bit lighter and this affects Singapore. The real metal piece is in France in some secret location and the world’s kilogram is based on that. The professors use calibration machines to synchronise the thermometers. I also managed to see a real laser and I was really surprised that the real laser is completely invisible!


Term 2

Reflection of term 2 test

I had done quite badly partly because I had insufficient time to prepare for the measurements test and also because I made too many careless mistakes. I will not be so complacent in the future and will prepare for a science test a few weeks before it arrives. I hope that all of us can do much better in the term 3 test.

The things I learned in Term 2:
Basically, I learned the following:

1. Elements, compounds and mixtures and the Periodic Table
2. Solutions and Suspensions (During home learning)
3. States of matter (solid, liquid and gas)
4. Kinetic theory of matter
5. Measurements

I learn how to plot graphs and how to operate a vernier caliper and micrometer and measure small things that our rulers can't measure.

Reflection on the lesson taught in Term 2. Any good suggestions to improve the lessons?

I feel that the lessons are quite boring because and we were taking notes only. Half the class were either sleeping or not paying attention and were doing their own things. The lessons could be made more interesting by playing several science games with the class. However, the lessons were valuable as there were only 2 science lessons a week and we had to learn everything very quickly and complete the syllabus to take the test or else we would probably fail the test. Overall, I feel that term 2 is quite enjoyable. Although I feel that we should go on field trips to understand science better.

What I wish to learn in term 3
I wish to learn several topics such as:

Models and Systems:
(Biology)
-Cell structure
-Function and organisation
-Digestive System
-Respiration
-Diffusion
-Osmosis

(Physics)
-Effects of heat
-Transfer of thermal energy


Advanced Chemistry:
-solubility graphs

Miscellaneous:
-animals diet, behaviour etc

What improvement I would want to see in term 2:
I would want to get a A1 for science like 80 and above ( I would try my best). I would revise for my test at an earlier date and not be so complacent. I will work harder and prepare more for the test. I will also pay more attention in class and try my best to talk less in class to not distract my classmate and the lesson as it would benefit everyone. I will also revise the notes and powerpoint slides given by the teacher and hand up my homework on time.

Term 3

Reflection on term 3 test

I had done quite well and had scored 80 for this test. The topics for the science test were Elements and Compounds, Solutions and Suspensions as well as Different Separation Techniques. These topics were taught either early in Term 3 or in Term 2. Therefore, I could easily revise through my notes for these 3 topics and memorize the important facts and important tips given by our science teacher . A very kind and thoughtful thing our Science teacher helped us to score higher was that she went through revision with the class before the Science Test. The period before that the science test was that the teacher did not come and Mrs Chu took advantage of the free period to go through the important stuff that would come out in the Test. That were very important and I could have scored higher because I did listen to what Mrs Chu was saying. If I had listened, I could have gotten much more than 80.

Topics we learn term 3
1. Separation techniques such as Filtration, Distillation, Sublimation and Paper Chromatography
2. Photosynthesis and respiration
3. Models and Systems (Cell structure, Functions of the different parts in a cell and Level of Organizations)

Reflection on the lesson taught in Term 2. Any good suggestions to improve the lessons?
I find the lessons very informative, interesting and interactive( hands-on). The Power Points posted in the IVLE are very comprehensive and easy to understand. There are also videos and plenty of graphics to help us understand the topic more. The experiments are also fun and interesting to carry out. We did some experiments on the topic "Cells" in the School Lab such as looking at animal and plant cells under a microscope. I had done this in Primary school but I could see the Plant and Animal Cells clearly under the microscope this time. We also learnt about the different parts of the cell, such as the Protoplasm and Mitochondria, Nucleus, Cell membrane, Cell wall, etc. I also learnt about the differences between an animal cell and a plant cell.

We were also taught the Level of Organisations. Many cells will make up a Tissue, many tissues working together will make an organ, many organs working together will form an organ system and lastly, many organ systems will form an organism!

However, sometimes the lesson can get a bit too boring and as it is the last lesson of the day. I think the lessons can improve if Mrs Chu perhaps shows us a bit more videos. I am sure that there are many science-related educational videos on Youtube. Another way to improve the lessons further is by organizing field trips for us to get close to Mother Nature.

What I wish to learn in Term 4

According to the Scheme Of Work, we will have a Science Trail in Term 4 as enrichment. I hope that this will be a fun experience for me and the whole class. I hope that we can go to the Science Centre and learn about science more deeply. I wish to learn more on biology too.

Improvement I would want to see in term 4
I would want to get a A1 for science like 80 and above ( I would try my best). I would revise for my test at an earlier date and not be so complacent. I hope I would be exempted.