What is the name of the firework that goes up in the air?
ang sagot jan ay ang gnda ko noh.. ^.^
The frogs' chin goes down, pulling air into the vocal sac. Then, it's nostrils shut and the chin goes up, forcing the air into the lungs. When they oxygen is taken, the chin will go down, pulling the air our of the lungs. Then the nostrils open up, and the chin will go up, pushing the air our of the chin. Then repeats.
Air above a heated surface expands and rises. When air is warmed up, its molecules move faster and faster and as a result they move further from each other. They still have the same mass, but they now occupy a larger volume. This means that its density is smaller. The opposite when air is cooled off. The molecules slow down, get closer together, occupy a smaller volume and therefore its density is bigger. When air…