Lab lesson (II)

This term we had a series of lab lesson, conducted on a weekly basis of course. The topics for lab lesson ranged from acids and alkaline to even reflection. Of course, we had a lot of fun doing these hands-on activities.
The complex relationship between acids, bases and the other compounds or metals related to it can only be seen and understood by lab lessons and the balancing of chemical equations, coupled with some general knowledge of the atomic charge of the various compounds. In the laboratory, we amazed ourselves by creating reactions that we never expected. Bubbles bubbling out of the test tubes at a alarming speed, litmus papers changing drastically in colours, heat being emitted from the test tube, and one whole chunk of metal being vapourised in a matter of seconds shocked us, and brought us to the realisation that acids and bases are no joke and should not be trifled with.
After a few lessons full of acids and bases and the wonderful reactions that they can produce, we then went on to light. Light was a much more abstract concept - something even Einstein meddled with - and some of us could not understand it completely, resulting in a few lab lessons being substituted for normal lessons. After we had grasped the concept of reflection, real and virtual images, concave and convex mirrors and so on, we went to do a series of experiments, using a wide variety of equipments such as mirrors and a large cuboid shaped object that releases light, and also some thin black pieces of plastic shaped in such a way that only thin shafts of light can pass through. We examined reflection, virtual images, refraction and many other thing related to optics. We even got a chance to look into (haha, literally) virtual and convex mirrors, and see first-hand how the different mirrors can have an effect on the virtual image created. Of course, most of these experiments were conducted in the dark.