Term 3

In term 3, we learned about sexual reproduction in man in detail. We learned about the different parts of both the female and male reproductive systems and their functions. We also learned about the male and female gametes, and are able to describe their size, numbers and mobility. In addition, we also learned about some of the physical changes that occur during puberty and early adolescence, and learned too about the menstrual cycle of females. Furthermore we learned about sexual transmitted diseases. We learned about the harmful consequences of sexually diseases, and through that, we also learned not to engage in premarital sexual relations with others.

We also learned about optics, and went on to find out what exactly is photonics and be aware of the applications of photonics around us, such as telecommunication and household devices. We also learned about reflection and refraction. We learned how reflection is affected by smooth surfaces and rough surfaces, and also understand the characteristics of an image formed by a plane mirror. We also have to observe and describe the image formed by a plane mirror. In addition, we learn how to construct a ray diagram illustrating reflection by plane mirrors. For refraction, we learn that the light ray bends towards the normal when travelling from a optically less dense medium to a optically denser medium.