8
th grade pupils are visiting a zoo. The teacher tells them that they will have to measure the temperature in the different enclosures. Hovan mesures the temperature of the lions' enclosure: it is 28 °C. Mariam goes to that of the monkeys: 20 °C. Vanik works on that of the penguins and notices that it is 32 °C less than on the monkeys' one. Rafik goes to the kamel's enclosure: it is 49 °C more than in the penguin's one. Vartuhi measures that of the parrots and sees one falling. He observes that the temperature is 13 °C less than the usual temperature of 27 °C. At the polar bear, a
female bear which will soon have a baby had to be separated from the others. In their enclosure it is usually 53 °C less than at the lions', but on that of the female bear, it is 10 °C more than the usual.