Absolutely, you need a passport to travel from one country to another.
no
You need a passport to cross from America to Canada. While inside Canada, you don't need your passport, except for ID purposes.
Canada...really?
Yes
As of June 1st, 2009, you need a passport to travel from Canada to the US.
Yes.
Because you are leaving the country they need to know who you are
To Canada you can; to Mexico you can't.
a passport for every individual in the car.
Yes you can, but you need a passport.
No but they need a passport if they live in Canada.