Learning Task 4: Read and answer the following questions. Use illustrations to further support your answers. Write your answers in a separate sheet of paper. 1. What are the different properties of light that apply to the image formation of optical devices such as mirrors and lenses?
2. The process of how images are formed in a camera is similar to that of our own eyes. What do you think is the difference between a camera and the human eye in terms of the process of image formation?
3. Why do you think the primary or objective lens of a refracting telescope should have a longer focal length?
4. What is the advantage of using a convex mirror as safety mirror placed on blind corners or area with limited visibility?
5. What are the advantages of using optical instruments in our daily activities? Share your own experiences.

Reread paragraph 1 of “welcome to ‘rise of the knights.’” which word from the paragraph does not create a tone of enthusiasm?

Read the passage from animal farm. "that was part of the arrangement! " cried squealer. "jones's shot only grazed him. i could show you this in his own writing, if you were able to read it. the plot was for snowball, at the critical moment, to give the signal for flight and leave the field to the enemy. and he very nearly succeeded—i will even say, comrades, he would have succeeded if it had not been for our heroic leader, comrade napoleon. do you not remember how, just at the moment when jones and his men had got inside the yard, snowball suddenly turned and fled, and many animals followed him? and do you not remember, too, that it was just at that moment, when panic was spreading and all seemed lost, that comrade napoleon sprang forward with a cry of 'death to humanity! ' and sank his teeth in jones's leg? surely you remember that, comrades? " exclaimed squealer, frisking from side to side. now when squealer described the scene so graphically, it seemed to the animals that they did remember it. at any rate, they remembered that at the critical moment of the battle snowball had turned to flee. but boxer was still a little uneasy. how does the characterization of squealer support the author’s purpose? squealer's dramatic accusations draw parallels between him and stalin’s propagandists. squealer's uncertainty shows that he is not a reliable ally of napoleon and is ineffective with messaging. squealer's ability to get the animals to listen to him shows that any animal can rise to be a leader in time. squealer's humble interactions with the animals reflect the importance of equality and cooperation.

Aman lives on the twelfth floor of an apartment building. every morning he takes the elevator down to the lobby and leaves the building. in the evening, he gets into the elevator, and, if there is someone else in the elevator -- or if it was raining that day -- he goes back to his floor directly. otherwise, he goes to the tenth floor and walks up two flights of stairs to his apartment.