1. Move the decimal point to the right until you have a number between 1 and 10. In this case, we move it four places to the right:

0.000314 -> 3.14

2. Count the number of places you moved the decimal point. Since we moved it four places to the right, the exponent will be -4.

3. Write the number in scientific notation:

3.14 x 10^-4

Therefore, 0.000314 in scientific notation is 3.14 x 10^-4