Term 3 Science lessons reflection

The Term 3 Science Lessons were very interesting. The lessons mainly covered the Physics components of Reflection, Refraction and light.

Just a random picture :D


The lessons comprised of both practical and theory lessons.

The practical lessons were especially fun and interesting because we were able to try out the different ways of finding out answers using real materials, instead of just using formulas.

I learnt many things from these Science lessons this term. Some of the thins that I have learned include the law of reflection - angle of incidence = angle of reflection. This has helped provided me with some answers on the "mysteries" of life. I had always used to wonder why mirrors reflect the way they do, and now I finally know the answer to that question.

Besides that, I have also learnt about refraction. This has also helped me to unlock the "mysteries" of life. In the past, whenever I looked into a cup of water with a straw sticking inside it, I would not know why the straw was bended. Now, I know the exact reasons why the straw looks bended.

My favourite part of this term's lessons were the practical lessons as they were extremely fun and enjoyable, and has helped me to learn more about Science through not only the textbook, but through real things as well.

I did not face many difficulties in this term's lessons because they were quite easy. To me, Physics is really just about understanding the topic, and with a little bit of common sense, it would be easy to answer Physics questions.

Somalian Cave Fish

Hi everybody! Today, I will be sharing on the news article about the Somalian Cave Fish.

Somalian cave fish have been cut off from the sun for up to 2.6 million years. Adapting to life in the dark has not only caused the fish’s eyes, but as well as its scales and skin coloring to disappear.

What is most extraordinary is that the environment has caused the fish to also alter its own clock.

This study is indeed important as it shows the amazing transformation of living things, in this case, of a fish.

The Somalian Cave Fish's clock had not been broken despite living in the dark for 2.6 million years, but has instead been able to alter the clock to suit its own needs.



The Somalian Cave Fish follows a 47 hour cycle, based on feeding time and not the amount of sunlight.

Most animals, plants and some kinds of bacteria follow the sun in setting their own daily clocks.

These biological, or circadian, clocks help govern sleeping, waking and feeding times, the rise and fall of blood pressure and other daily rhythms.

Generally, circadian clocks follow an approximately 24-hour cycle and are reset largely by sunlight. When human’s circadian clocks aren’t set correctly, jet lag and even long-term health problems can result.

That shows that a living thing's clock is indeed highly adaptable, and would be able to adapt to many different situations.

For a human, jet lag might occur if his/her clock was disturbed, but with this study, it shows that no permanent illness might occur, as in the case of the fish.

If one day the sun goes out, and the planet Earth becomes a place of darkness, living things might just be able to adapt to it....

Link of News Article - http://www.sciencenews.org/view/generic/id/334056/description/In_the_dark%2C_cave_fish_follows_its_own_rhythm