Science sound:
what is a example of each medium that sound can travel in

well.we hear different sounds around us.we are not only able to hear sounds but can also produce sound.for example,we can produce sound by talking or playing a music instrument.sound is produced when the membrane of the drum vibrates.

yes the first one is correct .

the word that best matches the meaning of the expression "went to the big ocean" is died.

the goldfish died, which is why the father looks at the children mournfully. the "big ocean" is the father's way of saying fish heaven. he could have just said that the goldfish died, but this way, the children imagine the fish in a bigger, better place instead of just picturing a dead fish.

explanation: