The document compares different attributes of objects using comparative adjectives such as hotter, bigger, colder, faster, louder, higher, longer, shorter, smaller, and wider. It provides examples comparing the heat of the desert and poles, size of elephants, temperature of ice and sand, speed of a hare and turtle, volume of loudspeakers, height of buildings, length of rivers, size of chamaleons, size of guitars, and width of streets. The document is authored by several fifth grade students from C.E.I.P. Pedro Alonso Niño school.