wait til he comes down into one of the small fire pits (the little lava circles) then he will pop his head out go up and hit him with the megatom hammer
You can find that out at www.zeldadungeon.net
Free all the gorons on the way. They have small keys . The last goron got the big key
When his head comes out of a hole you use the hammer and then hit it with your sword.
move around
Beat a boss and a chest will appear with a bow in it.
Play through the temple. You do know there are literally hundreds of walkthroughs on YouTube.
Free all the Gorons, get the Megaton Hammer, knock down the block and beat the boss (Volvagia). For a more detailed description, follow this link: http://www.zeldadungeon.net/Zelda05-ocarina-of-time-walkthrough-08.php#8_4
Electrocute him.
If you're talking about dodongo's cavern, you fall down a hole. In the actual fire temple, then you jump onto the rock that has some holes on the ground.
kill the spider, shoot it in the eye. and kill its babys. yes you have to kill a pregnant mother
You should try a walkthrough. I recommend the related link below. Look up Ocarina of Time and any of the walkthroughs with a star next to it.its a big puzzle really butwhat you have to do is find all these little keys which open chests and doors. then you have to fight dark link and you will get the long shot which you need to get to the temples boss but u still need to find the boss key.
Dark Link makes his appearance as the sub-boss of the Water Temple
Queen Gomah, The spidery thing in the basement of the deku tree.
you have to beat goht the boss
Ganon (final form), hands down! He is so imposible to beat, it's redicules. It does make it easier if you have the bigeron sword, but it's still imposible.