* Understanding Scientific Notation: Scientific notation is a way to express very large or very small numbers compactly. The format is a number between 1 and 10 (the coefficient) multiplied by a power of 10.

* Negative Exponent: A negative exponent in scientific notation indicates that the number is less than 1. The negative exponent tells you how many places to move the decimal to the left.

Calculation:

1. Start with the coefficient: 6.25

2. Move the decimal point 5 places to the left: 0.0000625

Therefore, 6.25 x 10^-5 in standard notation is 0.0000625.