I know some from memory, and I have quite a few written down from church lessons and stuff. I remembered the temple verses just from reading it when I was younger.
EDIT: If you need to look up a specific verse, and you aren't sure of the reference,
www.blueletterbible.org is an online Bible. Its really nice in that you don't have to type out the verses. They also have commentaries and whatnot as well.