What are the 4 major tournaments and what type of surface were they played on?

The four major tennis tournaments are the Australian Open (January), French Open (May/June), Wimbledon (June/July), and US Open (Aug./Sept.)

Both Australian Open and US Open are played on hard court surfaces. The Australian Open currently uses Plexicushion and the US Open uses hard court DecoTurf surface. The French Open is played on clay courts and Wimbledon is played on grass courts.