Do you need a passport and/or an I.D. to travel from the U.S. to Canada?

yes, as of recently you do need a pasport to travel into the us from canada and vice versa

When I went several years ago, I needed a birth certificate and ID, but it could have changed since then, and I believe that you now need a passport and ID.

Depends. A drivers license or state ID plus a copy of your birth certificate is acceptable if arriving by ground. A passport is only required if arriving by air.

Yes you need a passport.
You will only not need a passport if you are traveling to U.S. territories Ex. Guam, Puerto Rico, The U.S. Virgin islands.

yes, if u r going 2 a differnt country then u need 1 it doesnt matter where u go. ir u drive then someone will stop u and ask 4 ur passport.

yeah
you have to have a pass port any time you go to another country

if you are flying into canada, yes you definitely need a passport now. however, i drove into canada about a year or so ago and you can use your birth certificate, which I think is still acceptable until 2009.

i think so you can go onto like an airports website and see

Just Starting this Year you need one and you also need Proof of Citizenship-Passport and Birth Certificate or Naturalization Certificate and Proof of Identity-Passport and Drivers License. And The Border Patrol are Really Nice and Are Able to Give Help