Above vs. Over

Above indicates a position higher than something.

Above and Over

Above and over can both mean higher than.

Above is preferred when we want to mean that one thing is not directly over another.

Above is also used in measurements of temperature, height, intelligence etc., where we think of a vertical scale.

Over is preferred when one thing covers and/or touches another.

Over is also used to talk about ages and speeds, and to mean more than.