Legend of Zelda: Skyward Sword [SPOILERS]

Ok guys, help

 Spoiler

Lanayru Mines are annoying me and I haven't even gotten to the temple yet. I just got the little pincher thing that allows me to drop bombs from my Beetle thing. So now I'm at this part of the desert where there's a tree in front of me with a bomb that I am presumably supposed to take a drop on something, but there is only quicksand and monsters/areas that I cannot reach ahead of me. I spent like 45 minutes running around trying to figure out what to do...