Airspeed Indicator: registers the speed the airplane is flying

Altimeter: shows the airplane's height above sea level.  Set to barometric pressure at departure and by radio in flight.

Artificial Horizon: shows the aircraft's position in relation to the earth's horizon

Heading Indicator: compass that does not automatically point to magnetic north.  Set manually to the magnetic compass.

Turn Coordinator: shows the rate of turn and direction of turn

Vertical Velocity Indicator: indicates whether the aircraft is climbing, descending or in level flight