Check out this great video about driving a Mazda CX-5 in the snow, courtesy of our mates at Whichcar in Australia.
Firstly, you should know that driving in these conditions requires drivers to do everything more gently. Speed should be about half the dry-weather speed and braking should be done carefully.
Avoid braking when cornering - gently braking before entering a corner can help prevent skidding and loss of control.
Also keep in mind that driving in snowy or icy conditions is more fatiguing than your everyday driving, because you have to focus more. So be sure to stop every couple of hours, or more regularly if you need.